FIRST TRUST GNMA SERIES 50 & SERIES 51
485BPOS, 1994-04-29
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                                                File No. 33-27669



               SECURITIES AND EXCHANGE COMMISSION
                   WASHINGTON, D.C. 20549-1004
                                
                         POST-EFFECTIVE
                         AMENDMENT NO. 5
                                
                               TO
                                
                            FORM S-6

For Registration Under the Securities Act of 1933 of Securities
of Unit Investment Trusts Registered on Form N-8B-2

              THE FIRST TRUST GNMA SERIES 50 and 51
                      (Exact Name of Trust)
                                
                      NIKE SECURITIES L.P.
                    (Exact Name of Depositor)
                                
                      1001 Warrenville Road
                     Lisle, Illinois  60532
                                
  (Complete address of Depositor's principal executive offices)
                                

      NIKE SECURITIES L.P.         CHAPMAN AND CUTLER
      Attn:  James A. Bowen        Attn:  Eric F. Fess
      1001 Warrenville Road        111 West Monroe Street
      Lisle, Illinois  60532       Chicago, Illinois  60603

        (Name and complete address of agents for service)
                                
It is proposed that this filing will become effective (check
appropriate box)

:    :  immediately upon filing pursuant to paragraph (b)
:  x :  April 29, 1994
:    :  60 days after filing pursuant to paragraph (a)
:    :  on (date) pursuant to paragraph (a) of rule (485 or 486)
     
     Pursuant to Rule 24f-2 under the Investment Company  Act  of
1940,   the  issuer  has  registered  an  indefinite  amount   of
securities.   A 24f-2 Notice for the offering was last  filed  on
February 15, 1994.



<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50
                               5,667,629 UNITS

PROSPECTUS
Part One
Dated April 15, 1994

Note: Part One of this Prospectus Part One may not be distributed unless
      accompanied by Part Two.

The Trust

The First Trust GNMA Fund, Series 50 (the "Trust") is a fixed portfolio of
taxable mortgage-backed securities of the modified pass-through type (the
"Securities") which involve large pools of mortgages and are fully guaranteed
as to principal and interest by the Government National Mortgage Association
("GNMA").  All of the Securities in the Trust consist of pools of long-term
mortgages on 1- to 4-family dwellings.  At March 16, 1994, each Unit
represented a 1/5,667,629 undivided interest in the principal and net income
of the Trust (see "The Fund" in Part Two).

The Units being offered by this Prospectus are issued and outstanding Units
which have been purchased by the Sponsor in the secondary market or from the
Trustee after having been tendered for redemption.  The profit or loss
resulting from the sale of Units will accrue to the Sponsor.  No proceeds from
the sale of Units will be received by the Trust.

Public Offering Price per 1,000 Units

The Public Offering Price per 1,000 Units is equal to the aggregate value of
the Securities in the Portfolio of the Trust divided by the number of Units
outstanding, multiplied by 1,000, plus a sales charge of 4.0% of the Public
Offering Price (4.167% of the amount invested).  At March 16, 1994, the Public
Offering Price per 1,000 Units was $369.78 plus net interest accrued to date
of settlement (five business days after such date) of $1.81 (see "Market for
Units" in Part Two).

      Please retain both parts of this Prospectus for future reference.
______________________________________________________________________________
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
______________________________________________________________________________

                             NIKE SECURITIES L.P.
                                   Sponsor

<PAGE>
Estimated Current Return and Estimated Long-Term Return

Estimated Current Return to Unit holders was 8.01% per annum on March 16,
1994.  Estimated Long-Term Return to Unit holders was 6.44% per annum on
March 16, 1994.  Estimated Current Return is calculated by dividing the
Estimated Net Annual Interest Income per 1,000 Units by the Public Offering
Price per 1,000 Units.  Estimated Long-Term Return is calculated using a
formula which (1) takes into consideration and determines and factors in the
relative weightings of the market values, yields (which take into account the
amortization of premiums and the accretion of discounts) and estimated average
life of all of the Securities in the Trust and (2) takes into account the
expenses and sales charge associated with each Unit of the Trust.  Since the
market values and estimated average lives of the Securities and the expenses
of the Trust will change, there is no assurance that the present Estimated
Current Return and Estimated Long-Term Return indicated above will be realized
in the future.  Estimated Current Return and Estimated Long-Term Return are
expected to differ because the calculation of the Estimated Long-Term Return
reflects the estimated date and amount of principal returned while the
Estimated Current Return calculations include only Net Annual Interest Income
and Public Offering Price.  The above figures are based on estimated per 1,000
Unit cash flows.  Estimated cash flows will vary with changes in fees and
expenses, with changes in current interest rates, and with the principal
prepayment, redemption, maturity, exchange or sale of the underlying
Securities and with changes in the average life assumptions of the GNMA pools.
See "What are Estimated Current Return and Estimated Long-Term Return?" in
Part Two.

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50
            SUMMARY OF ESSENTIAL INFORMATION AS OF MARCH 16, 1994
                        Sponsor:  Nike Securities L.P.
               Evaluator:  Securities Evaluation Service, Inc.
              Trustee:  United States Trust Company of New York
<TABLE>
<CAPTION>
GENERAL INFORMATION

<S>                                                               <C>
Principal Amount of Securities in the Trust                         $1,852,908
Number of Units                                                      5,667,629
Fractional Undivided Interest in the Trust per Unit                1/5,667,629
Public Offering Price:
  Aggregate Value of Securities in the Portfolio                    $2,015,243
  Aggregate Value of Securities per 1,000 Units                        $355.57
  Principal Cash per 1,000 Units                                         $(.61)
  Sales Charge 4.167% (4.0% of Public Offering Price,
    excluding Principal Cash, per 1,000 Units)                          $14.82
  Public Offering Price per 1,000 Units                               $369.78*
Redemption Price and Sponsor's Repurchase Price per
  1,000 Units ($14.82 less than the Public Offering
  Price per 1,000 Units)                                              $354.96*
Discretionary Liquidation Amount of the Trust (40% of the
  original principal amount of Securities deposited
  in the Trust)                                                     $3,136,270

</TABLE>
Date Trust Established                                          March 23, 1989
Mandatory Termination Date                                   December 31, 2038

[FN]
*Plus net interest accrued to date of settlement (five business days after
purchase) (see "Public Offering Price per 1,000 Units" herein and "Redemption
of Units" and "Purchase of Units by the Sponsor" in Part Two).

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50
            SUMMARY OF ESSENTIAL INFORMATION AS OF MARCH 16, 1994
                        Sponsor:  Nike Securities L.P.
               Evaluator:  Securities Evaluation Service, Inc.
              Trustee:  United States Trust Company of New York
<TABLE>
<CAPTION>
SPECIAL INFORMATION

<S>                                                                   <C>
Calculation of Estimated Net Annual Interest
    Income per 1,000 Units:
  Estimated Annual Interest Income                                     $31.87
  Less:  Estimated Annual Expense                                        2.25
                                                                       ______
Estimated Net Annual Interest Income                                   $29.62
                                                                       ======

Estimated Daily Rate of Net Interest Accrual per 1,000 Units           $.0823
                                                                       ======

Estimated Current Return Based on Public Offering Price                  8.01%
                                                                       =====

Estimated Long-Term Return Based on Public Offering Price                6.44%
                                                                       =====

</TABLE>
Trustee's Annual Fee:  $.90 per $1,000 principal amount of underlying
Securities, exclusive of expenses of the Trust.

Evaluator's Annual Fee:  $.30 per $1,000 principal amount deposited during the
initial offering period.  Evaluations are made at 4:00 p.m. Eastern time.

Supervisory Fee:  Maximum of $.15 per 1,000 units annually.

Distributions will generally be made on or shortly after the first day of each
month (except for the distribution which would be made on January 1 which
instead will be made on or before December 31) to Unit holders of record on
the first day of the preceding month.


<PAGE>





                        REPORT OF INDEPENDENT AUDITORS


The Unit Holders of The First Trust
GNMA Fund, Series 50

We have audited the accompanying statement of assets and liabilities,
including the portfolio, of The First Trust GNMA Fund, Series 50 as of
December 31, 1993, and the related statements of operations and changes in net
assets for each of the three years in the period then ended.  These financial
statements are the responsibility of the Trust's Trustee.  Our responsibility
is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements.  Our
procedures included confirmation of securities owned as of December 31, 1993,
by correspondence with the Trustee.  An audit also includes assessing the
accounting principles used and significant estimates made by the Trustee, as
well as evaluating the overall financial statement presentation.  We believe
that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of The First Trust GNMA Fund,
Series 50 at December 31, 1993, and the results of its operations and changes
in its net assets for each of the three years in the period then ended in
conformity with generally accepted accounting principles.



                                                                 ERNST & YOUNG
Chicago, Illinois
March 18, 1994

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50

                     STATEMENT OF ASSETS AND LIABILITIES

                              December 31, 1993

<TABLE>
<CAPTION>
                                    ASSETS

<S>                                                               <C>

Securities, at value (cost $2,046,673)
  (Note 1)                                                        $2,288,042
Receivable from investment transactions                               61,046
Accrued interest                                                      16,921
                                                                  __________

                                                                   2,366,009

</TABLE>
<TABLE>
<CAPTION>
                          LIABILITIES AND NET ASSETS

<S>                                                 <C>           <C>
Cash overdraft                                                         1,238
Unit redemptions payable                                               2,040
                                                                  __________
                                                                       3,278
                                                                  __________

Net assets, applicable to 5,764,665 outstanding
    units of fractional undivided interest:
  Cost of Trust assets (Note 1)                      $2,046,673
  Unrealized appreciation                               241,369
  Distributable funds                                    74,689
                                                     __________

                                                                  $2,362,731
                                                                  ==========

Net asset value per 1,000 units                                      $409.86
                                                                  ==========

</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                         THE FIRST TRUST GNMA FUND, SERIES 50

                                      PORTFOLIO

                                  December 31, 1993



The portfolio consists of the following Government National Mortgage
Association mortgage-backed securities of the modified pass-through type:

<TABLE>
<CAPTION>
       Principal         Coupon      Range of stated
         amount           rate        maturities (a)           Value
       <C>                 <C>      <C>                     <C>

        $1,305,695         9.0%     6/15/16 to 12/15/16      $1,397,910
           777,620        11.0      7/15/15 to 12/15/15         890,132
        __________                                           __________
        $2,083,315                                           $2,288,042
        ==========                                           ==========
</TABLE>

Note to portfolio:

(a)   The principal amount of securities listed by coupon rate and range of
      stated maturities represents an aggregate of individual securities
      having varying stated maturities within such range.  Securities are
      grouped by coupon rate with a range of stated maturities because current
      market conditions accord no difference in price among the securities
      grouped together.  The market value of the securities could be affected
      by a change in their assumed average maturity or by the actual
      maturities of the individual securities.

[FN]
               See accompanying notes to financial statements.

<PAGE>

                     THE FIRST TRUST GNMA FUND, SERIES 50

                           STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                Year ended December 31,

                                              1993        1992        1991
<S>                                         <C>          <C>         <C>
Interest income                             $292,733     410,108     530,654

Expenses:
  Trustee's fees and related expenses        (8,851)    (10,075)    (14,171)
  Evaluator's fees                           (2,280)     (2,280)     (2,280)
  Supervisory fees                             (924)       (998)     (1,061)
                                            ________________________________
Investment income - net                      280,678     396,755     513,142

Net gain (loss) on investments:
  Net realized gain (loss)                    22,495      17,595      10,088
  Change in unrealized appreciation/
    depreciation                           (156,327)   (117,462)     286,723
                                            ________________________________

                                           (133,832)    (99,867)     296,811
                                            ________________________________
Net increase in net assets resulting from
  operations                                $146,846     296,888     809,953
                                            ================================
</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50

                     STATEMENTS OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                Year ended December 31,

                                              1993        1992        1991
<S>                                         <C>          <C>         <C>

Net increase in net assets resulting
    from operations:
  Investment income - net                   $280,678     396,755     513,142
  Net realized gain (loss) on
    investments                               22,495      17,595      10,088
  Change in unrealized appreciation/
  depreciation on investments              (156,327)   (117,462)     286,723
                                          ___________________________________
                                             146,846     296,888     809,953
Distributions to unit holders:
  Investment income - net                  (270,757)   (414,936)   (522,737)
  Principal                              (1,260,371) (1,093,294)   (573,762)
                                          ___________________________________
                                         (1,531,128) (1,508,230) (1,096,499)

Unit redemptions (392,528, 497,525
    and 345,495 in 1993, 1992 and
    1991, respectively):
  Principal portion                        (189,519)   (338,695)   (286,331)
  Net interest accrued                         (712)       (923)     (1,137)
                                          ___________________________________
                                           (190,231)   (339,618)   (287,468)
                                          ___________________________________
Total increase (decrease) in net assets  (1,574,513) (1,550,960)   (574,014)

Net assets:
  At the beginning of the year             3,937,244   5,488,204   6,062,218
                                          ___________________________________
  At the end of the year (including
    distributable funds applicable to
    Trust units of $74,689, $(55,880)
    and $21,486 at December 31, 1993,
    1992 and 1991, respectively)          $2,362,731   3,937,244   5,488,204
                                          ==================================
Trust units outstanding at the end of
  the year                                 5,764,665   6,157,193   6,654,718

</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 50

                        NOTES TO FINANCIAL STATEMENTS

1.  Significant accounting policies

Security valuation -

Securities are stated at values as determined by Securities Evaluation
Service, Inc. (the Evaluator), certain shareholders of which are officers of
the Sponsor.  The values of the securities are based on (1) current bid prices
for the securities obtained from dealers or brokers who customarily deal in
securities comparable to those held by the Trust, (2) current bid prices for
comparable securities, (3) appraisal or (4) any combination of the above.

Security cost -

The Trust's cost of its portfolio is based on the offering prices of the
securities on the Date of Deposit, March 23, 1989, and each subsequent Date of
Deposit for additions to the Trust.  The discount is recognized as interest
income on a pro rata basis as principal pay downs are received.  Realized gain
(loss) from security transactions is reported on an identified cost basis.

Federal income taxes -

The Trust, which is an association taxable as a corporation under the Internal
Revenue Code, intends to qualify for and elect tax treatment as a "regulated
investment company" under the Internal Revenue Code of 1986.  By qualifying
for and electing such treatment, the Fund will not be subject to Federal
income tax on taxable income or net capital gains distributed to Unit holders.
Distribution of the Fund's entire net investment income is required by the
Indenture.

Expenses of the Trust -

The Trustee is United States Trust Company of New York.  The Trustee's fees
are $.90 per $1,000 principal amount of securities.  An annual fee of $.30 per
$1,000 principal amount of securities deposited during the initial offering
period is payable to the Evaluator.  Additionally, the Trust pays all related
expenses of the Trustee, recurring financial reporting costs and an annual
supervisory fee payable to an affiliate of the Sponsor.

Distributions to unit holders -

Distributions of investment income - net and principal to unit holders are
presented on the basis reported by the Trustee.  This characterization of
distributions does not reflect the amortization of premium or discount as
discussed above under "Security cost."  Principal distributions represent a
tax return of capital to unit holders.

2.  Other information

Cost to investors -

The cost to initial investors of units of the Trust was based on the aggregate
offering price of the securities on the date of an investor's purchase, plus a
sales charge of 3.8% of the public offering price which is equivalent to
approximately 3.950% of the net amount invested.

<PAGE>
Selected data per 1,000 units of the Trust
  outstanding throughout each year -
<TABLE>
<CAPTION>
                                                      Year ended December 31,

                                                    1993      1992      1991
<S>                                                <C>       <C>      <C>
Interest income                                    $48.76     63.09     77.72
Expenses                                            (2.01)    (2.05)    (2.56)
                                                  ___________________________
      Investment income - net                       46.75     61.04     75.16

Distributions to unit holders:
  Investment income - net                          (44.72)   (63.50)   (76.02)
  Principal                                       (208.04)  (167.23)   (83.74)
Net gain (loss) on investments                     (23.58)   (15.57)    43.31
                                                  ___________________________
      Total increase (decrease) in net assets     (229.59)  (185.26)   (41.29)

Net assets:
  Beginning of the year                            639.45    824.71    866.00
                                                  ___________________________

  End of the year                                 $409.86    639.45    824.71
                                                  ===========================

</TABLE>


<PAGE>

                     THE FIRST TRUST GNMA FUND, SERIES 50

                                   PART ONE
                       Must be Accompanied by Part Two

                            _____________________
                             P R O S P E C T U S
                            _____________________

                  SPONSOR:          Nike Securities L.P.
                                    1001 Warrenville Road
                                    Lisle, Illinois  60532
                                    (800) 621-1675

                  TRUSTEE:          United States Trust Company of New York
                                    770 Broadway
                                    New York, New York  10003

                  LEGAL COUNSEL     Chapman and Cutler
                  TO SPONSOR:       111 West Monroe Street
                                    Chicago, Illinois  60603

                  LEGAL COUNSEL     Carter, Ledyard and Milburn
                  TO TRUSTEE:       2 Wall Street
                                    New York, New York  10005

                  INDEPENDENT       Ernst & Young
                  AUDITORS:         Sears Tower
                                    233 South Wacker Drive
                                    Chicago, Illinois  60606

This Prospectus does not constitute an offer to sell, or a solicitation of an
offer to buy, securities in any jurisdiction to any person to whom it is not
lawful to make such offer in such jurisdiction.

This Prospectus does not contain all the information set forth in the
registration statement and exhibits relating thereto, which the Trust has
filed with the Securities and Exchange Commission, Washington, D.C., under the
Securities Act of 1933 and the Investment Company Act of 1940, and to which
reference is hereby made.




<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51
                               20,009,186 UNITS

PROSPECTUS
Part One
Dated April 15, 1994

Note: Part One of this Prospectus may not be distributed unless accompanied by
      Part Two.

The Trust

The First Trust GNMA Fund, Series 51 (the "Trust") is a fixed portfolio of
taxable mortgage-backed securities of the modified pass-through type (the
"Securities") which involve large pools of mortgages and are fully guaranteed
as to principal and interest by the Government National Mortgage Association
("GNMA").  All of the Securities in the Trust consist of pools of medium-term
mortgages on 1- to 4-family dwellings.  At March 16, 1994, each Unit
represented a 1/20,009,186 undivided interest in the principal and net income
of the Trust (see "The Fund" in Part Two).

The Units being offered by this Prospectus are issued and outstanding Units
which have been purchased by the Sponsor in the secondary market or from the
Trustee after having been tendered for redemption.  The profit or loss
resulting from the sale of Units will accrue to the Sponsor.  No proceeds from
the sale of Units will be received by the Trust.

Public Offering Price per 1,000 Units

The Public Offering Price per 1,000 Units is equal to the aggregate value of
the Securities in the Portfolio of the Trust divided by the number of Units
outstanding, multiplied by 1,000, plus a sales charge of 3.5% of the Public
Offering Price (3.627% of the amount invested).  At  March 16, 1994, the
Public Offering Price per 1,000 Units was $163.01 plus net interest accrued to
date of settlement (five business days after such date) of $.85 (see "Market
for Units" in Part Two).

      Please retain both parts of this Prospectus for future reference.
______________________________________________________________________________
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
______________________________________________________________________________

                             NIKE SECURITIES L.P.
                                   Sponsor

<PAGE>
Estimated Current Return and Estimated Long-Term Return

Estimated Current Return to Unit holders was 8.50% per annum on  March 16,
1994. Estimated Long-Term Return to Unit holders was 6.34% per annum on
March 16, 1994.  Estimated Current Return is calculated by dividing the
Estimated Net Annual Interest Income per 1,000 Units by the Public Offering
Price per 1,000 Units.  Estimated Long-Term Return is calculated using a
formula which (1) takes into consideration and determines and factors in the
relative weightings of the market values, yields (which take into account the
amortization of premiums and the accretion of discounts) and estimated average
life of all of the Securities in the Trust and (2) takes into account the
expenses and sales charge associated with each Unit of the Trust.  Since the
market values and estimated average lives of the Securities and the expenses
of the Trust will change, there is no assurance that the present Estimated
Current Return and Estimated Long-Term Return indicated above will be realized
in the future.  Estimated Current Return and Estimated Long-Term Return are
expected to differ because the calculation of the Estimated Long-Term Return
reflects the estimated date and amount of principal returned while the
Estimated Current Return calculations include only Net Annual Interest Income
and Public Offering Price.  The above figures are based on estimated per 1,000
Unit cash flows.  Estimated cash flows will vary with changes in fees and
expenses, with changes in current interest rates, and with the principal
prepayment, redemption, maturity, exchange or sale of the underlying
Securities and with changes in the average life assumptions of the GNMA pools.
See "What are Estimated Current Return and Estimated Long-Term Return?" in
Part Two.


<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51
            SUMMARY OF ESSENTIAL INFORMATION AS OF March 16, 1994
                        Sponsor:  Nike Securities L.P.
               Evaluator:  Securities Evaluation Service, Inc.
              Trustee:  United States Trust Company of New York
<TABLE>
<CAPTION>
GENERAL INFORMATION

<S>                                                               <C>
Principal Amount of Securities in the Trust                         $2,905,618
Number of Units                                                     20,009,186
Fractional Undivided Interest in the Trust per Unit               1/20,009,186
Public Offering Price:
  Aggregate Value of Securities in the Portfolio                    $3,158,951
  Aggregate Value of Securities per 1,000 Units                        $157.88
  Principal Cash per 1,000 Units                                         $(.59)
  Sales Charge 3.627% (3.5% of Public Offering Price,
    excluding Principal Cash, per 1,000 Units)                           $5.72
  Public Offering Price per 1,000 Units                                $163.01*
Redemption Price and Sponsor's Repurchase Price per
  1,000 Units ($5.72 less than the Public Offering
  Price per 1,000 Units)                                               $157.29*
Discretionary Liquidation Amount of the Trust (40% of the
  original principal amount of Securities deposited
  in the Trust)                                                    $11,001,366

</TABLE>
Date Trust Established                                          March 23, 1989
Mandatory Termination Date                                   December 31, 2038

[FN]
*Plus net interest accrued to date of settlement (five business days after
purchase) (see "Public Offering Price per 1,000 Units" herein and "Redemption
of Units" and "Purchase of Units by the Sponsor" in Part Two).

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51
            SUMMARY OF ESSENTIAL INFORMATION AS OF MARCH 16, 1994
                        Sponsor:  Nike Securities L.P.
               Evaluator:  Securities Evaluation Service, Inc.
              Trustee:  United States Trust Company of New York
<TABLE>
<CAPTION>
SPECIAL INFORMATION

<S>                                                                    <C>
Calculation of Estimated Net Annual Interest
    Income per 1,000 Units:
  Estimated Annual Interest Income                                      $15.25
  Less:  Estimated Annual Expense                                         1.40
                                                                        ______
  Estimated Net Annual Interest Income                                  $13.85
                                                                        ======
Estimated Daily Rate of Net Interest
  Accrual per 1,000 Unit                                                $.0385
                                                                        ======

Estimated Current Return Based on Public Offering Price                  8.50%
                                                                        ======

Estimated Long-Term Return Based on Public Offering Price                6.34%
                                                                        ======

</TABLE>
Trustee's Annual Fee:  $.90 per $1,000 principal amount of underlying
Securities, exclusive of expenses of the Trust.

Evaluator's Annual Fee:  $.30 per $1,000 principal amount deposited during the
initial offering period.  Evaluations are made at 4:00 p.m. Eastern time.

Supervisory Fee:  Maximum of $.15 per 1,000 units annually.

Distributions will generally be made on or shortly after the first day of each
month (except for the distribution which would be made on January 1 which
instead will be made on or before December 31) to Unit holders of record on
the first day of the preceding month.


<PAGE>





                        REPORT OF INDEPENDENT AUDITORS


The Unit Holders of The First Trust
GNMA Fund, Series 51

We have audited the accompanying statement of assets and liabilities,
including the portfolio, of The First Trust GNMA Fund, Series 51 as of
December 31, 1993, and the related statements of operations and changes in net
assets for each of the three years in the period then ended.  These financial
statements are the responsibility of the Trust's Trustee.  Our responsibility
is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements.  Our
procedures included confirmation of securities owned as of December 31, 1993,
by correspondence with the Trustee.  An audit also includes assessing the
accounting principles used and significant estimates made by the Trustee, as
well as evaluating the overall financial statement presentation.  We believe
that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of The First Trust GNMA Fund,
Series 51 at December 31, 1993, and the results of its operations and changes
in its net assets for each of the three years in the period then ended in
conformity with generally accepted accounting principles.




                                                                 ERNST & YOUNG
Chicago, Illinois
March 18, 1994

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51

                     STATEMENT OF ASSETS AND LIABILITIES

                              December 31, 1993

<TABLE>
<CAPTION>
                                    ASSETS

<S>                                                               <C>
Securities, at value (cost $3,359,201) (Note 1)                   $3,538,956
Receivable from investment transactions                              119,960
Accrued interest                                                      28,483
Cash                                                                   1,636
                                                                  __________
                                                                   3,689,035

</TABLE>
<TABLE>
<CAPTION>
                          LIABILITIES AND NET ASSETS

<S>                                                 <C>           <C>
Unit redemptions payable                                               6,283
                                                                  __________

Net assets, applicable to 20,376,531 outstanding
    units of fractional undivided interest:
  Cost of Trust assets (Note 1)                      $3,359,201
  Unrealized appreciation                               179,755
  Distributable funds                                   143,796
                                                     __________

                                                                  $3,682,752
                                                                  ==========

Net asset value per 1,000 units                                      $180.73
                                                                  ==========

</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                         THE FIRST TRUST GNMA FUND, SERIES 51

                                      PORTFOLIO

                                  December 31, 1993



The portfolio consists of the following Government National Mortgage
Association mortgage-backed securities of the modified pass-through type:

<TABLE>
<CAPTION>
       Principal         Coupon      Range of stated
         amount           rate        maturities (a)           Value

        <C>               <C>       <C>                      <C>
        $3,255,148        10.5%     6/15/99 to 12/15/00      $3,538,956
        ==========                                           ==========

</TABLE>

Note to portfolio:

(a)   The principal amount of securities listed by coupon rate and range of
      stated maturities represents an aggregate of individual securities
      having varying stated maturities within such range.  Securities are
      grouped by coupon rate with a range of stated maturities because current
      market conditions accord no difference in price among the securities
      grouped together.  The market value of the securities could be affected
      by a change in their assumed average maturity or by the actual
      maturities of the individual securities.

[FN]
               See accompanying notes to financial statements.


<PAGE>

                     THE FIRST TRUST GNMA FUND, SERIES 51

                           STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                Year ended December 31,

                                              1993        1992        1991

<S>                                         <C>          <C>       <C>
Interest income                             $409,420     787,447   1,565,259

Expenses:
  Trustee's fees and related expenses       (15,723)    (19,111)    (25,104)
  Evaluator's fees                           (7,780)     (7,780)     (7,780)
  Supervisory fees                           (3,320)     (3,626)     (3,938)
                                            ________________________________
Investment income - net                      382,597     756,930   1,528,437

Net gain (loss) on investments:
  Net realized gain (loss)                     7,211     (1,247)      26,244
  Change in unrealized appreciation/
    depreciation                           (149,732)   (387,598)     374,234
                                            ________________________________
                                           (142,521)   (388,845)     400,478
                                            ________________________________
Net increase in net assets resulting from
  operations                                $240,076     368,085   1,928,915
                                            ================================
</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51

                     STATEMENTS OF CHANGES IN NET ASSETS

<TABLE>
<CAPTION>
                                                Year ended December 31,

                                              1993        1992        1991
<S>                                      <C>           <C>        <C>
Net increase in net assets resulting
    from operations:
  Investment income - net                   $382,597     756,930   1,528,437
  Net realized gain (loss) on
    investments                                7,211     (1,247)      26,244
  Change in unrealized appreciation/
    depreciation on investments            (149,732)   (387,598)     374,234
                                         ____________________________________
                                             240,076     368,085   1,928,915

Distributions to unit holders:
  Investment income - net                  (499,242)   (992,303) (1,699,591)
  Principal                              (2,852,232) (5,805,517) (4,429,516)
                                         ____________________________________
                                         (3,351,474) (6,797,820) (6,129,107)

Unit redemptions (1,753,782, 2,043,831
    and 2,080,160 in 1993, 1992 and
    1991, respectively):
  Principal portion                        (401,277)   (852,727) (1,347,017)
  Net interest accrued                       (1,567)     (2,842)     (7,061)
                                         ____________________________________
                                           (402,844)   (855,569) (1,354,078)
                                         ____________________________________
Total increase (decrease) in net assets  (3,514,242) (7,285,304) (5,554,270)

Net assets:
  At the beginning of the year             7,196,994  14,482,298  20,036,568
                                         ____________________________________
  At the end of the year (including
    distributable funds applicable to
    Trust units of $143,796, $86,891
    and $190,837 at December 31, 1993,
    1992 and 1991, respectively)         $ 3,682,752   7,196,994  14,482,298
                                         ====================================
Trust units outstanding at the end of
  the year                                20,376,531  22,130,313  24,174,144

</TABLE>
[FN]

               See accompanying notes to financial statements.

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51

                        NOTES TO FINANCIAL STATEMENTS


1.  Significant accounting policies

Security valuation -

Securities are stated at values as determined by Securities Evaluation
Service, Inc. (the Evaluator), certain shareholders of which are officers of
the Sponsor.  The values of the securities are based on (1) current bid prices
for the securities obtained from dealers or brokers who customarily deal in
securities comparable to those held by the Trust, (2) current bid prices for
comparable securities, (3) appraisal or (4) any combination of the above.

Security cost -

The Trust's cost of its portfolio is based on the offering prices of the
securities on the Date of Deposit, March 23, 1989, and each subsequent Date of
Deposit for additions to the Trust.  The discount is recognized as interest
income on a pro rata basis as principal pay downs are received.  Realized gain
(loss) from security transactions is reported on an identified cost basis.

Federal income taxes -

The Trust, which is an association taxable as a corporation under the Internal
Revenue Code, intends to qualify for and elect tax treatment as a "regulated
investment company" under the Internal Revenue Code of 1986.  By qualifying
for and electing such treatment, the Fund will not be subject to Federal
income tax on net investment income or net capital gains distributed to its
unit holders.  As the Trust distributes its entire net capital gains, if any,
and net investment income each year, no Federal income tax provision is
required.

Expenses of the Trust -

The Trustee is United States Trust Company of New York.  The Trustee's fees
are $.90 per $1,000 principal amount of securities.  An annual fee of $.30 per
$1,000 principal amount of securities deposited during the initial offering
period is payable to the Evaluator.  Additionally, the Trust pays all related
expenses of the Trustee, recurring financial reporting costs and an annual
supervisory fee payable to an affiliate of the Sponsor.

Distributions to unit holders -

Distributions of investment income - net and principal to unit holders are
presented on the basis reported by the Trustee.  This characterization of
distributions does not reflect the amortization of premium or discount as
discussed above under "Security cost."  Principal distributions represent a
tax return of capital to unit holders.

2.  Other information

Cost to investors -

The cost to initial investors of units of the Trust was based on the aggregate
offering price of the securities on the date of an investor's purchase, plus a
sales charge of 3.3% of the public offering price which is equivalent to
approximately 3.413% of the net amount invested.



<PAGE>
Selected data per 1,000 units of the Trust
  outstanding throughout each year -
<TABLE>
<CAPTION>
                                                    Year ended December 31,

                                                    1993      1992      1991
<S>                                               <C>        <C>      <C>
Interest income                                    $18.94     33.64     62.19
Expenses                                            (1.24)    (1.30)    (1.46)
                                                  ___________________________
    Investment income - net                         17.70     32.34     60.73

Distributions to unit holders:
  Investment income - net                          (23.13)   (42.35)   (66.45)
  Principal                                       (132.30)  (247.47)  (173.56)
Net gain (loss) on investments                      (6.75)   (16.39)    15.19
                                                  ___________________________
    Total increase (decrease) in net assets       (144.48)  (273.87)  (164.09)

Net assets:
  Beginning of the year                            325.21    599.08    763.17
                                                  ___________________________

  End of the year                                 $180.73    325.21    599.08
                                                  ===========================

</TABLE>

<PAGE>
                     THE FIRST TRUST GNMA FUND, SERIES 51

                                   PART ONE
                       Must be Accompanied by Part Two

                            _____________________
                             P R O S P E C T U S
                            _____________________

                  SPONSOR:          Nike Securities L.P.
                                    1001 Warrenville Road
                                    Lisle, Illinois  60532
                                    (800) 621-1675

                  TRUSTEE:          United States Trust Company of New York
                                    770 Broadway
                                    New York, New York  10003

                  LEGAL COUNSEL     Chapman and Cutler
                  TO SPONSOR:       111 West Monroe Street
                                    Chicago, Illinois  60603

                  LEGAL COUNSEL     Carter, Ledyard & Milburn
                  TO TRUSTEE:       2 Wall Street
                                    New York, New York  10005

                  INDEPENDENT       Ernst & Young
                  AUDITORS:         Sears Tower
                                    233 South Wacker Drive
                                    Chicago, Illinois  60606

This Prospectus does not constitute an offer to sell, or a solicitation of an
offer to buy, securities in any jurisdiction to any person to whom it is not
lawful to make such offer in such jurisdiction.

This Prospectus does not contain all the information set forth in the
registration statement and exhibits relating thereto, which the Trust has
filed with the Securities and Exchange Commission, Washington, D.C., under the
Securities Act of 1933 and the Investment Company Act of 1940, and to which
reference is hereby made.



           The First Trust(registered trademark) GNMA

PROSPECTUS                              NOTE: THIS PART TWO PROSPECTUS MAY
Part Two                                        ONLY BE USED WITH PART ONE      
Dated April 28, 1994


The First Trust GNMA (the "Fund"), including the various series 
of The First Trust GNMA, consists of series of trusts (the "Trusts" 
or "Series" of the Fund), each of which consists of a fixed portfolio 
of taxable mortgage-backed securities of the fully modified pass-through 
type, which involve large pools of mortgages and are fully guaranteed 
as to principal and interest by the Government National Mortgage 
Association ("GNMA"), (the "Securities" or "Ginnie Maes") including 
so-called "Ginnie Mae IIs." Each Series of the Fund consists of 
pools of mortgages on 1-  to 4- family dwellings of up to 30 years 
(the "Long Term Trusts") or in the case of Series 44, 48, 51, 
54, 56, 58, 59 and 64 of up to 15 years (the "Medium Term Trusts"). 
The Portfolio, essential information based thereon and financial 
statements, including a report of independent auditors relating 
to the series of the Fund offered hereby, are contained in Part 
One to which reference should be made for such information. UNITS 
OF THE FIRST TRUST GNMA, SERIES 36, 37, 40, 45 AND 49 
(COLLECTIVELY, THE "FOREIGN INVESTOR SERIES") ARE AVAILABLE ONLY 
TO NON-RESIDENT ALIENS AND FOREIGN CORPORATIONS FOR WHICH INTEREST 
PAID BY THE FOREIGN INVESTOR SERIES WOULD NOT BE EFFECTIVELY CONNECTED 
WITH THE CONDUCT OF A TRADE OR BUSINESS IN THE UNITED STATES. 
The income on the Foreign Investor Series Units is designed to 
be exempt from United States Federal income taxes, including withholding 
taxes, for foreign Unit holders who meet various conditions and 
provide required certifications. For the convenience of foreign 
investors, a Form W-8 is attached to this prospectus.The Form 
W-8 must be filed with the Trustee to exempt Unit holders of the 
Foreign Investor Series from Federal withholding taxes and a newly 
completed Form W-8 must be refiled every three calendar years 
thereafter.

The Objectives of the Fund are monthly distributions of interest 
and principal and conservation of capital through an investment 
in a portfolio of Ginnie Maes.

The guaranteed payment of principal and interest afforded by Ginnie 
Maes may make investment in each Series of the Fund other than 
the Foreign Investor Series particularly well suited for purchase 
by Individual Retirement Accounts, Keogh Plans, pension funds 
and other tax-deferred retirement plans. In addition, the ability 
to buy single Units (minimum purchase $1,000 and $250 for tax-deferred 
retirement plans such as IRA accounts) enables such investors 
to tailor the dollar amount of their purchases of Units to take 
the maximum possible advantage of the annual deductions available 
for contributions to such plans. Investors should consult with 
their tax advisers before investing. See "Why are Investments 
in Trusts other than the Foreign Investor Series Suitable for 
Retirement Plans?"

Offering. The Units offered hereby are issued and outstanding 
Units which have been reacquired either by purchase from the Trustee 
of Units tendered for redemption or by purchase in the open market. 
The price paid in each instance was not less than the value of 
the Securities per Unit, plus net interest accrued to the date 
of settlement, determined as provided herein under "How is the 
Public Offering Price Determined?" Any profit or loss resulting 
from the sale of Units will accrue to the Sponsor or other dealers 
selling the Units and no proceeds from any such sale will be received 
by the Fund.

BOTH PARTS OF THE PROSPECTUS SHOULD BE RETAINED FOR FUTURE REFERENCE.


THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE 
SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION 
NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES 
COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. 
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.


Page 1

The Public Offering Price per 1,000 Units is equal to the aggregate 
bid price of the Securities in the Portfolio of the Fund divided 
by the number of Units outstanding multiplied by 1,000, plus a 
sales charge of 4.0% of the Public Offering Price (4.167% of the 
amount invested) for the Long Term Trusts and 3.50% of the Public 
Offering Price (3.627% of the amount invested) for the Medium 
Term Trusts. The sales charge is reduced on a graduated scale 
for sales involving at least $100,000 of principal invested. See 
"How is the Public Offering Price Determined?", particularly for 
the method of evaluation.

Monthly Distributions of principal, prepayments of principal, 
if any, and interest received by the Fund will be paid in cash 
unless the Unit holder elects to have them automatically reinvested 
as described herein. See "How Can Distributions to Unit Holders 
be Reinvested?" Any such reinvestment is made at net asset value, 
that is, without a sales charge. Investors, at the time of purchase, 
will have the ability to designate that only principal payments 
(including prepayments) or only interest payments or both are 
to be reinvested. Monthly distributions will be made as indicated 
in Part One for each Trust.  Information with respect to the estimated 
current return and estimated long-term return  to Unit holders 
is also contained in Part One.

Market. The Sponsor, although not obligated to do so, intends 
to maintain a market for the Units at prices based upon the aggregate 
bid price of the Securities in the Portfolio of the Series of 
the Fund. In the absence of such a market, a Unit holder will 
nonetheless be able to dispose of the Units through redemption 
at prices based upon the bid prices of the underlying Securities. 
(See "How May Units be Redeemed?")


Page 2


                      The First Trust GNMA


What is the First Trust GNMA?

The First Trust GNMA (the "Fund"), including the various series 
of The First Trust GNMA, is a series of trusts, all similar but 
separate with different series numbers. Each was created under 
the laws of the State of New York pursuant to a Trust Agreement 
(the "Indenture"), dated the Date of Deposit with Nike Securities 
L.P., as Sponsor, United States Trust Company of New York, as 
Trustee, Securities Evaluation Service, Inc. as Evaluator, and 
First Trust Advisors L.P., as Portfolio Supervisor. On the Date 
of Deposit, the Sponsor deposited with the Trustee interest-bearing 
obligations, including delivery statements relating to contracts 
for the purchase of certain such obligations and irrevocable letters 
of credit issued by a financial institution in the amounts required 
for such purchases (the "Securities" or "Ginnie Maes"). The Trustee 
thereafter credited the account of the Sponsor for Units of each 
Trust representing the entire ownership of the Fund which Units 
are being offered hereby.

The objectives of the Fund and each Series thereof are monthly 
distributions of interest and principal and conservation of capital 
through an investment in a fixed portfolio of Securities (the 
"Portfolio") consisting of Ginnie Maes guaranteed by the Government 
National Mortgage Association ("GNMA"). Although the Ginnie Maes 
are backed by the full faith and credit of the United States, 
the Units of the Fund, as such, are not backed by such full faith 
and credit. The Fund may be an appropriate investment medium for 
investors who desire to participate in a portfolio of taxable 
fixed income securities offering the safety of capital provided 
by securities backed by the full faith and credit of the United 
States but who do not wish to invest the minimum $25,000 which 
is required for a direct investment in GNMA guaranteed securities. 
Because regular payments of principal are to be received and certain 
of the Securities from time to time may be redeemed or will mature 
in accordance with their terms or may be sold under circumstances 
described herein, the Fund is not expected to retain its present 
size and composition. Units will remain outstanding until redeemed 
upon tender to the Trustee by any Unit holder (which may include 
the Sponsor) or until the termination of a series of the Fund 
pursuant to the Indenture. 

Units of the Foreign Investor Series of the Fund are available 
only to non-resident aliens and foreign corporations for which 
interest paid by the Foreign Investor Series would not be effectively 
connected with the conduct of a trade or business in the United 
States. Such non-resident aliens who meet various conditions and 
provide required certifications will not be subject to United 
States Federal income taxes on income from such Trust. (See "What 
is the Tax Status of Unit Holders?")

In selecting Ginnie Maes for deposit in the Fund, the following 
factors, among others, were considered by the Sponsor: (i) the 
types of such securities available; (ii) the prices and yields 
of such securities relative to other comparable securities, including 
the extent to which such securities are trading at a premium or 
at a discount from par; and (iii) the maturities of such securities. 
See "Portfolio" in Part One for information with respect to the 
Securities selected for deposit in the Fund. The Ginnie Maes included 
in the Fund are backed by the indebtedness secured by the mortgages 
contained in the underlying mortgage pools. In addition, in order 
for the Ginnie Maes to be eligible for inclusion in the Foreign 
Investor Series of the Fund, evidence was received by the Sponsor 
that the underlying mortgages were originated after July 18, 1984. 
Although the Sponsor believes that all the underlying mortgages 
were originated after July 18, 1984, to the extent that it is 
not the case, a foreign Unit holder will be subject to United 
States Federal income taxes on income derived from mortgages that 
were originated prior to July 18, 1984. (See "What is the Tax 
Status of Unit Holders?")

Except with respect to the Foreign Investor Series of the Fund, 
the Sponsor has the limited right to direct the Trustee to purchase 
additional securities, which must satisfy the criteria previously 
described for Securities originally included in such Series of 
the Fund, with moneys held in the Principal Account of such Series 
of the Fund representing the proceeds of Securities sold as described 
under the caption "How May Securities be Removed from the Fund?" 
or the proceeds of Securities sold which proceeds are not required 
for


Page 3

the purpose of redemption of Units. The Trustee shall notify all 
Unit holders of the affected Series of the acquisition of such 
additional securities within five days of such acquisition.

An investment in Units of the Fund should be made with an understanding 
of the risks which an investment in fixed rate long-term debt 
obligations may entail, including the risk that the value of the 
Portfolio and hence of the Units will decline with increases in 
interest rates. The value of the underlying Securities will fluctuate 
inversely with changes in interest rates. In addition, the potential 
for appreciation of the underlying Securities, which might otherwise 
be expected to occur as a result of a decline in interest rates, 
may be limited or negated by increased principal prepayments in 
respect of the underlying mortgages. The high inflation rates 
during certain periods, together with the fiscal measures adopted 
to attempt to deal with it, has resulted in wide fluctuations 
in interest rates and, thus, in the value of fixed rate long-term 
debt obligations generally. The Sponsor cannot predict whether 
such fluctuations will continue in the future.

The Portfolio of each Series of the Fund consists of Ginnie Maes 
fully guaranteed as to payments of principal and interest by GNMA. 
The percentage relationships of the Securities in each Series 
of the Fund are as indicated in Part One.

The Fund may contain Securities which were acquired at a market 
discount. Such Securities trade at less than par value because 
the interest coupons thereon are lower than interest coupons on 
comparable debt securities being issued at currently prevailing 
interest rates. If such interest rates for newly issued and otherwise 
comparable securities increase, the market discount of previously 
issued securities will become greater, and if such interest rates 
for newly issued comparable securities decline, the market discount 
of previously issued securities will be reduced, other things 
being equal. The Fund may contain Securities which were acquired 
at a market premium. Such Securities trade at more than par value 
because the interest coupons thereon are higher than interest 
coupons on comparable debt securities being issued at currently 
prevailing interest rates. If such interest rates for newly issued 
and otherwise comparable securities decrease, the market premium 
of previously issued securities will become greater, and if such 
interest rates for newly issued comparable securities increase, 
the market premium of previously issued securities will be reduced, 
or such securities may trade at a market discount, other things 
being equal. Market discount attributable to interest changes 
does not indicate a lack of market confidence in the issue. Neither 
the Sponsor nor the Trustee shall be liable in any way for any 
default, failure or defect in any of the Securities.

THE MORTGAGES UNDERLYING A GINNIE MAE MAY BE PREPAID AT ANY TIME 
WITHOUT PENALTY. A LOWER OR HIGHER CURRENT RETURN ON UNITS MAY 
OCCUR DEPENDING ON WHETHER THE PRICE AT WHICH THE RESPECTIVE GINNIE 
MAES WERE ACQUIRED BY THE FUND IS LOWER OR HIGHER THAN PAR (WHICH 
REPRESENTS THE PRICE AT WHICH SUCH GINNIE MAES WILL BE REDEEMED 
UPON PREPAYMENT). REDEMPTION OF PREMIUM GINNIE MAES AT PAR PURSUANT 
TO PREPAYMENTS OF MORTGAGES WILL OPERATE TO LOWER THE CURRENT 
RETURN ON UNITS OUTSTANDING AT THE TIME BECAUSE PREMIUM GINNIE 
MAES NORMALLY CARRY HIGHER INTEREST COUPONS THAN PAR OR DISCOUNT 
GINNIE MAES. DURING PERIODS OF DECLINING INTEREST RATES, SUCH 
PREPAYMENTS MAY OCCUR WITH INCREASING FREQUENCY BECAUSE, AMONG 
OTHER REASONS, MORTGAGORS MAY BE ABLE TO REFINANCE THEIR OUTSTANDING 
MORTGAGES AT LOWER INTEREST RATES.

To the extent that any Units are redeemed by the Trustee, the 
fractional undivided interest in the Fund represented by each 
unredeemed Unit will increase, although the actual interest in 
the Fund represented by such fraction will remain substantially 
unchanged. Units will remain outstanding until redeemed upon tender 
to the Trustee by any Unit holder, which may include the Sponsor, 
or until the termination of a series of the Fund pursuant to the 
Indenture.

Description of Securities. The Ginnie Maes included in the Fund 
are backed by the indebtedness secured by underlying mortgage 
pools containing either up to 30 year mortgages or up to 15 year 
mortgages on 1- to 4-family dwellings. The pool of mortgages which 
is to underlie a particular new issue of Ginnie Maes is assembled 
by the proposed issuer of such Ginnie Maes. The issuer is typically 
a mortgage banking firm, and in every instance must be a mortgagee 
approved by and in good standing with the Federal


Page 4

Housing Administration ("FHA"). In addition, GNMA imposes its 
own criteria on the eligibility of issuers, including a net worth 
requirement.

The mortgages which are to comprise a new Ginnie Mae pool may 
have been originated by the issuer itself in its capacity as a 
mortgage lender or may be acquired by the issuer from a third 
party, such as another mortgage banker, a banking institution, 
the Veterans Administration ("VA") (which in certain instances 
acts as a direct lender and thus originates its own mortgages) 
or one of several other governmental agencies. All mortgages in 
any given pool will be insured under the National Housing Act, 
as amended ("FHA-insured"), or Title V of the Housing Act of 1949 
("FMHA Insured") or guaranteed under the Servicemen's Readjustment 
Act of 1944, as amended, or Chapter 37 of Title 38, U.S.C. ("VA-guaranteed"). 
Such mortgages will have a date for the first scheduled monthly 
payment of principal that is not more than one year prior to the 
date on which GNMA issues its guaranty commitment as described 
below, will have comparable interest rates and maturity dates, 
and will meet additional criteria of GNMA. All mortgages in the 
pools backing the Ginnie Maes contained in the Fund are mortgages 
on 1- to 4-family dwellings (having either a stated maturity of 
up to 30 years or a stated maturity of up to 15 years). In general, 
the mortgages in these pools provided for equal monthly payments 
over the life of the mortgage (aside from prepayments) designed 
to repay the principal of the mortgage over such period, together 
with interest at the fixed rate on the unpaid balance.

To obtain GNMA approval of a new pool of mortgages, the issuer 
will file with GNMA an application containing information concerning 
itself, describing generally the pooled mortgages, and requesting 
that GNMA approve the issue and issue its commitment (subject 
to GNMA's satisfaction with the mortgage documents and other relevant 
documentation) to guarantee the timely payment of principal of 
and interest on the Ginnie Maes to be issued by the issuer. If 
the application is in order, GNMA will issue its commitment and 
will assign a GNMA pool number to the pool. Upon completion of 
the required documentation (including detailed information as 
to the underlying mortgages, a custodial agreement with a Federal 
or state regulated financial institution satisfactory to GNMA 
pursuant to which the underlying mortgages will be held in safekeeping, 
and a detailed guaranty agreement between GNMA and the issuer), 
the issuance of the Ginnie Maes is permitted. When the Ginnie 
Maes are issued, GNMA will endorse its guarantee thereon. The 
aggregate principal amount of the Ginnie Maes issued will be equal 
to the then aggregate unpaid principal balances of the pooled 
mortgages. The interest rate borne by the Ginnie Maes is currently 
fixed at  1/2 of 1% below the interest rate of the pooled 1- to 
4-family mortgages, the differential being applied to the payment 
of servicing and custodial charges as well as GNMA's guaranty 
fee.

Ginnie Mae IIs consist of jumbo pools of mortgages consisting 
of pools of mortgages from more than one issuer. The major advantage 
of Ginnie Mae IIs lies in the fact that a central paying agent 
sends one check to the holder on the required payment date. This 
greatly simplifies the current procedure of collecting distributions 
from each issuer of a Ginnie Mae, since such distributions are 
often received late.

All of the Ginnie Maes in the Fund, including the Ginnie Mae IIs, 
are of the "fully modified pass-through" type, i.e., they provided 
for timely monthly payments to the registered holders thereof 
(including the Fund) of their pro rata share of the scheduled 
principal payments on the underlying mortgages, whether or not 
collected by the issuers, including, on a pro rata basis, any 
prepayments of principal of such mortgages received and interest 
(net of the servicing and other charges described above) on the 
aggregate unpaid principal balance of such Ginnie Maes, whether 
or not the interest on the underlying mortgages has been collected 
by the issuers.

The Ginnie Maes in the Fund are guaranteed as to timely payment 
of principal and interest by GNMA. Funds received by the issuers 
on account of the mortgages backing the Ginnie Maes in the Fund 
are intended to be sufficient to make the required payments of 
principal of and interest in such Ginnie Maes but, if such funds 
are insufficient for that purpose, the guaranty agreements between 
the issuers and GNMA require the issuers to make advances sufficient 
for such payments. If the issuers fail to make such payments, 
GNMA will do so.

Page 5


GNMA is authorized by Section 306(g) of Title III of the National 
Housing Act to guarantee the timely payment of principal of and 
interest on securities which are based on or backed by a trust 
or pool composed of mortgages insured by FHA, the Farmers' Home 
Administration ("FMHA") or guaranteed by the VA. Section 306(g) 
provides further that the full faith and credit of the United 
States is pledged to the payment of all amounts which may be required 
to be paid under any guaranty under such subsection. An opinion 
of an Assistant Attorney General of the United States, dated December 
9, 1969, states that such guaranties "constitute general obligations 
of the United States backed by its full faith and credit."*

*        Any statement in this Prospectus that a particular Security 
is backed by the full faith and credit of the United States is 
based upon the opinion of an Assistant Attorney General of the 
United States and should be so construed.

 GNMA is empowered to borrow from the United States Treasury to 
the extent necessary to make any payments of principal and interest 
required under such guaranties.

Ginnie Maes are backed by the aggregate indebtedness secured by 
the underlying FHA-insured, FMHA-insured or VA-guaranteed mortgages 
and, except to the extent of funds received by the issuers on 
account of such mortgages, Ginnie Maes do not constitute a liability 
of nor evidence any recourse against such issuers, but recourse 
thereon is solely against GNMA. Holders of Ginnie Maes (such as 
the Fund) have no security interest in or lien on the underlying 
mortgages. 

The GNMA guaranties referred to herein relate only to payment 
of principal of and interest on the Ginnie Maes in the Fund and 
not to the Units offered hereby.

Monthly payments of principal will be made, and additional prepayments 
of principal may be made, to the Fund in respect of the mortgages 
underlying the Ginnie Maes in the Fund. All of the mortgages in 
the pools relating to the Ginnie Maes in the Portfolio are subject 
to prepayment without any significant premium or penalty at the 
option of the mortgagors. While the mortgages on 1- to 4-family 
dwellings underlying the Ginnie Maes have a stated maturity of 
either up to 30 years or up to 15 years, it has been the experience 
of the mortgage industry that the average life of comparable mortgages, 
owing to prepayments, refinancings and payments from foreclosures, 
is considerably less.

In the mid 1970s, published yield tables for Ginnie Maes utilized 
a 12 year average life assumption for Ginnie Mae pools of 26-30 
year mortgages on 1- to 4-family dwellings. This assumption was 
derived from the FHA experience relating to prepayments on such 
mortgages during the period from the mid 1950s to the mid 1970s. 
This 12 year average life assumption was calculated in respect 
of a period during which mortgage lending rates were fairly stable. 
THE ASSUMPTION IS NO LONGER AN ACCURATE MEASURE OF THE AVERAGE 
LIFE OF GINNIE MAES OR THEIR UNDERLYING SINGLE FAMILY MORTGAGE 
POOLS. RECENTLY IT HAS BEEN OBSERVED THAT MORTGAGES ISSUED AT 
HIGH INTEREST RATES HAVE EXPERIENCED ACCELERATED PREPAYMENT RATES 
WHICH WOULD INDICATE A SIGNIFICANTLY SHORTER AVERAGE LIFE THAN 
12 YEARS. Today, research analysts use complex formulae to scrutinize 
the prepayments of mortgage pools in an attempt to predict more 
accurately the average life of Ginnie Maes. The bases for the 
calculation of the estimated average life of the Securities in 
a Series of the Trust and other related matters is set forth in 
"What are Estimated Current Return and Estimated Long-Term Return?"

SOME OF THE MORTGAGES ON 1- TO 4-FAMILY DWELLINGS UNDERLYING THE 
GINNIE MAES IN THE FUND HAVE A STATED MATURITY OF UP TO 15 YEARS. 
ALTHOUGH GINNIE MAES COMPOSED OF 15 YEAR MORTGAGES ARE A RELATIVELY 
RECENT DEVELOPMENT, THEY MAY BE CURRENTLY TRADING ON A BASIS OF 
A 7 YEAR AVERAGE LIFE ASSUMPTION. TODAY, RESEARCH ANALYSTS USE 
COMPLEX FORMULAE TO SCRUTINIZE THIS PREPAYMENT OF MORTGAGE POOLS 
IN AN ATTEMPT TO PREDICT MORE ACCURATELY THE AVERAGE LIFE OF GINNIE 
MAES. BECAUSE THE MORTGAGES HAVE A SHORTER AVERAGE LIFE, THE PERCENTAGE 
OF EACH PAYMENT WHICH IS ACTUALLY A RETURN OF PRINCIPAL WILL INCREASE 
MUCH MORE QUICKLY THAN IS TRUE FOR LONGER TERM MORTGAGES.

A number of factors, including homeowner's mobility, change in 
family size and mortgage market interest rates will affect the 
average life of the Ginnie Maes in the Portfolio. For example, 
Ginnie Maes issued during a period of high interest rates will 
be backed by a pool of mortgage loans bearing similarly high rates. 
In general, during a period of declining interest rates, new mortgage 
loans with interest rates lower than those charged during periods 
of high rates will become available. To the extent a homeowner 
has an outstanding


Page 6

mortgage with a high rate, he may refinance his mortgage at a 
lower interest rate or he may rapidly prepay his old mortgage. 
Should this happen, a Ginnie Mae issued with a high interest rate 
may experience a rapid prepayment of principal as the underlying 
mortgage loans prepay in whole or in part. Accordingly, there 
can be no assurance that the prepayment levels which will be actually 
realized will conform to the experience of the FHA, other mortgage 
lenders or other Ginnie Mae investors. It is not possible to meaningfully 
predict prepayment levels regarding the Ginnie Maes in the Fund. 
Therefore, the termination of the Fund might be accelerated as 
a result of prepayments made as described herein.

In addition to prepayments as described above, sales of Securities 
in the Fund under certain permitted circumstances may result in 
an accelerated termination of the Fund. Also, it is possible that, 
in the absence of a secondary market for the Units or otherwise, 
redemptions of Units may occur in sufficient numbers to reduce 
a series of the Fund to a size resulting in such termination. 
Early termination of a series of the Fund may have important consequences 
to the Unit holder, e.g., to the extent that Units were purchased 
with a view to an investment of longer duration, the overall investment 
program of the investor may require readjustment; or the overall 
return on investment may be less or greater than anticipated, 
depending in part on whether the purchase price paid for Units 
represented the payment of an overall premium or a discount, respectively, 
above or below the stated principal amounts of the underlying 
mortgages. In addition, a capital gain or loss for tax purposes 
may result from termination of a series of the Fund.

What is the Rating of the Units?

Standard and Poor's Corporation has rated Units of the Fund "AAA." 
This is the highest rating assigned by Standard & Poor's Corporation. 
See "Description of Standard & Poor's Corporation Rating." The 
obtaining of this rating by the Fund should NOT be construed as 
an approval of the offering of the Units by Standard & Poor's 
Corporation or as a guarantee of the market value of the Fund 
or the Units. Standard & Poor's Corporation has indicated that 
this rating is not a recommendation to buy, hold or sell Units 
nor does it take into account the extent to which expenses of 
the Fund or sales by the Fund of Securities for less than the 
purchase price paid by the Fund will reduce payment to Unit holders 
of the interest and principal required to be paid on such Securities. 
There is no guarantee that the "AAA" investment rating with respect 
to the Units will be maintained. Standard & Poor's Corporation 
was compensated by the Sponsor for its services in rating Units 
of the Fund.

What are Estimated Current Return and Estimated Long-Term Return?

Debt securities are customarily offered to investors on a "yield 
price" basis (as contrasted to a "dollar price" basis) at the 
lesser of the price as computed to maturity of such debt security 
or to an earlier redemption date. Since Units of the Fund are 
offered on a dollar price basis, the estimated rate of return 
on an investment in Units of the Fund is stated in terms of "Estimated 
Current Return and Estimated Long-Term Return." Estimated Current 
Return is computed by multiplying the Estimated Net Annual Interest 
Income per 1,000 Units by $1,000 and dividing the result by the 
Public Offering Price per 1,000 Units (as described in Part One). 
If the price of such 1,000 Units is less than $1,000, the yield 
to maturity will be greater than the Estimated Current Return; 
if the price of such 1,000 Units is greater than $1,000, the yield 
to maturity will be less than the Estimated Current Return. A 
change in either the Estimated Net Annual Interest Income or the 
Public Offering Price will result in a change in the Estimated 
Current Return. The Public Offering Price will vary in accordance 
with fluctuations in the value of the underlying Securities. The 
Net Annual Interest income will change as Securities mature or 
are paid, sold, or as scheduled payments of principal or prepayments 
of principal are made, or as the expenses of the Fund change.

Unlike Estimated Current Return, Estimated Long-Term Return is 
a measure of the estimated return to the investor earned over 
the estimated life of the Fund. The Estimated Long-Term Return 
represents an average of the yields to estimated average life 
of the Securities in the Fund and adjusted to reflect expenses 
and sales charges. The estimated long-term return figure is calculated 
using an estimated average life for the Securities. Estimated 
average life is an essential factor in the calculation of Estimated 
Long-Term Return. When the Fund has a shorter average life than 
is estimated, Estimated Long-Term Return will be higher if a Series 
of the Trust contains Securities priced at a discount and lower 
if the Securities are priced at


Page 7

a premium. Conversely, when the Fund has a longer average life 
than is estimated, Estimated Long-Term Return will be lower if 
the Securities are priced at a discount and higher if the Securities 
are priced at a premium. In order to calculate estimated average 
life, an estimated prepayment rate for the remaining term of the 
mortgage pool must be determined. Each of the primary market makers 
in GNMA securities has sophisticated computer models which are 
used to determine the estimated prepayment rate for GNMA securities. 
Each computer model takes into account a number of factors and 
assumptions including: actual prepayment data reported by GNMA 
for recent periods on a particular pool, the impact of aging on 
the prepayment of mortgage pools, the current interest rate environment, 
the coupon, the housing environment, historical trends on GNMA 
securities as a group, geographical factors and general economic 
trends. Because of differences in the weighting of such factors 
and assumptions, such computer models maintained by the market 
makers in GNMA securities produce estimated prepayment rates which 
vary. In connection with the deposit of Securities in the Fund, 
the Sponsor, in determining an estimated prepayment rate, has 
utilized information provided by a market maker in GNMA securities 
which it believes to be reliable. However, it is possible that 
another computer model might provide an estimated prepayment rate 
which would prove over the life of the Securities to be more accurate. 
Once an appropriate estimated prepayment rate is ascertained, 
an estimated average life is calculated. The estimated average 
life for the Fund is subject to change with alterations in the 
data used in any of the underlying assumptions. The actual average 
lives of the Securities and the actual long-term returns will 
be different from the estimated average lives and the estimated 
long-term returns. In calculating Estimated Long-Term Return, 
the average yield for the Portfolio is derived by weighting each 
Security's yield by the market value of the Security and by the 
amount of time remaining to the estimated average life. Once the 
average yield on the Securities in the Fund is computed, this 
figure is then adjusted for estimated expenses and the effect 
of the maximum sales charge paid by investors. The Estimated Long-Term 
Return calculation does not take into account certain delays in 
distributions of income and the timing of other receipts and distributions 
on Units and may, depending on maturities, overstate or understate 
the impact of sales charges. Both of these factors may result 
in a lower return.

Both Estimated Current Return and Estimated Long-Term Return are 
subject to fluctuation with changes in the compositions of the 
Portfolio of the Fund, principal payments and prepayments and 
changes in market value of the underlying Securities and changes 
in fees and expenses, including sales charges. In addition, return 
figures may not be directly comparable to yield figures used to 
measure other investments, and since return figures are based 
on certain assumptions and variables, the actual returns received 
by a Unit holder may be higher or lower.

Payments received in respect of the mortgages underlying the Ginnie 
Maes in the Fund will consist of a portion representing interest 
and a portion representing principal. Although the aggregate monthly 
payment made by the obligor on each mortgage remains constant 
(aside from optional prepayments of principal), in the early years 
most of each such payment will represent interest, while in later 
years, the proportion representing interest will decline and the 
proportion representing principal will increase. However, by reason 
of optional prepayments, principal payments in the earlier years 
on the mortgages underlying the Ginnie Maes may be substantially 
in excess of those required by the amortization schedules of such 
mortgages. Therefore, principal payments in later years may be 
substantially less since the aggregate unpaid principal balances 
of such underlying mortgages may have been greatly reduced. To 
the extent that the underlying mortgages bearing higher interest 
rates in the Fund are prepaid faster than the other underlying 
mortgages, the Net Annual Interest Income and the Estimated Returns 
on the Units can be expected to decline. Monthly payments to the 
Unit holders will reflect all of the foregoing factors.

Record Dates and Distribution Dates for monthly distributions 
of principal and interest are as indicated in Part One for each 
Trust.

How is Accrued Interest Treated?

Accrued interest is the accumulation of unpaid interest on a security 
from the last day on which interest thereon was paid. Interest 
on the Securities in the Fund is paid monthly to the Fund. However, 
interest on the


Page 8

Securities in the Fund is accounted for daily on an accrual basis. 
Because of this, the Fund always has an amount of interest earned 
but not yet collected by the Trustee. For this reason, the Public 
Offering Price of Units will have added to it the proportionate 
share of accrued and undistributed interest to the date of settlement. 
Unit holders will receive on the next distribution date of a Trust 
the amount, if any, of accrued interest paid on their Units.

Except through an advancement of its own funds, the Trustee has 
no cash for distribution to Unit holders until it receives interest 
payments on the Securities in the Fund. The Trustee will recover 
its advancements without interest or other costs to the Fund from 
interest received on the Securities in the Fund. (See "How are 
Interest and Principal Distributed?")

Because of the varying interest payment dates of the Securities, 
accrued interest at any point in time will be greater than the 
amount of interest actually received by the Fund and distributed 
to Unit holders. Therefore, there will always remain an item of 
accrued interest that is added to the value of the Units. If a 
Unit holder sells or redeems all or a portion of his Units, he 
will be entitled to receive his proportionate share of the accrued 
interest from the purchaser of his Units. Since the Trustee has 
the use of the interest held in the Interest Account for distributions 
to Unit holders and since such Account is non-interest bearing 
to Unit holders, the Trustee benefits thereby. See "Public Offering: 
How is the Public Offering Price Determined?" for information 
with respect to the uncertainty during certain periods of each 
month of the precise amount of accrued interest of the Ginnie 
Maes.

What are the Expenses and Charges?

At no cost to the Fund, the Sponsor has borne all the expenses 
of creating and establishing the Fund, including the cost of the 
initial preparation, printing and execution of the Indenture and 
the certificates for the Units, legal, accounting and other out-of-pocket 
expenses. The Sponsor will not receive any fees in connection 
with its activities relating to the Fund. However, for Series 
42 and all subsequent Series, First Trust Advisors L.P., an affiliate 
of the Sponsor, will receive an annual supervisory fee, which 
is not to exceed the amount set forth in Part One, for providing 
portfolio supervisory services for the Fund. Such fee is based 
on the number of Units outstanding in the Fund on January 1 of 
each year except for Trusts which were established subsequent 
to January 1, in which case the fee will be based on the number 
of Units outstanding in such Trusts as of the respective Dates 
of Deposit. The fee may exceed the actual costs of providing such 
supervisory services for each Fund, but at no time will the total 
amount received for portfolio supervisory services rendered to 
unit investment trusts of which Nike Securities L.P. is the Sponsor 
in any calendar year exceed the aggregate cost to First Trust 
Advisors L.P. of supplying such services in such year.

The Trustee pays certain expenses of the Fund for which it is 
reimbursed by the Fund. For each aggregate valuation of the Securities 
in a series of the Fund, the Evaluator will receive the fee indicated 
under "Summary of Essential Information" in Part One of this Prospectus. 
The Trustee will receive for its ordinary recurring services to 
the Fund an annual fee computed at $.90 per annum per $1,000 principal 
amount of underlying Securities. For a discussion of the services 
performed by the Trustee pursuant to its obligations under the 
Indenture, reference is made to the material set forth under "Rights 
of Unit Holders." The Trustee's and Evaluator's fees are payable 
monthly on or before each Distribution Date from the Interest 
Account to the extent funds are available and then from the Principal 
Account. Since the Trustee has the use of the funds being held 
in the Principal and Interest Accounts for future distributions, 
payment of expenses and redemptions and since such Accounts are 
non-interest bearing to Unit holders, the Trustee benefits thereby. 
Part of the Trustee's compensation for its services to the Fund 
is expected to result from the use of these funds. Both fees may 
be increased without approval of the Unit holders by amounts not 
exceeding proportionate increases under the category "All Services 
Less Rent of Shelter" in the Consumer Price Index published by 
the United States Department of Labor.

The following additional charges are or may be incurred by the 
Fund: all expenses (including legal and annual auditing expenses) 
of the Trustee incurred in connection with its responsibilities 
under the Indenture, except in the event of negligence, bad faith 
or willful misconduct on its part; the expenses and costs of any 
action undertaken by the Trustee to protect the Fund and the rights 
and interests of the Unit holders 


Page 9

fees of the Trustee for any extraordinary services performed 
under the Indenture; indemnification of the Trustee for any loss, 
liability or expense incurred by it without negligence, bad faith 
or willful misconduct on its part, arising out of or in connection 
with its acceptance or administration of the Fund; indemnification 
of the Sponsor for any loss, liability or expense incurred without 
gross negligence, bad faith or willful misconduct in acting as 
Depositor of the Fund; all taxes and other government charges 
imposed upon the Securities or any part of the fund (no such taxes 
or charges are being levied or made or, to the knowledge of the 
Sponsor, contemplated); and expenditures incurred in contacting 
Unit holders upon termination of the Fund. The above expenses 
and the Trustee's annual fee, when paid or owing to the Trustee, 
are secured by a lien on the Fund. In addition, the Trustee is 
empowered to sell Securities in order to make funds available 
to pay all these amounts if funds are not otherwise available 
in the Interest and Principal Accounts. Due to the minimum principal 
amount in which Securities may be required to be sold, the proceeds 
of such sales may exceed the amount necessary for the payment 
of such fees and expenses.

So long as the Sponsor is maintaining a secondary market for a 
Series of the Fund, the Indenture requires that such Series will 
be audited on an annual basis at the expense of the Fund by independent 
auditors selected by the Sponsor. The Trustee shall not be required, 
however, to cause such an audit to be performed if its cost to 
a Series of the Fund shall exceed $.50 per 1,000 Units on an annual 
basis. Unit holders of a Series of the Fund covered by an audit 
may obtain a copy of the audited financial statements of such 
Series from the Trustee upon request.

What is the Tax Status of Unit Holders?

A.  THE INFORMATION IN THIS SECTION A APPLIES TO EACH SERIES OF 
THE FUND OTHER THAN THE FOREIGN INVESTOR SERIES. FOR THE TAX STATUS 
OF UNIT HOLDERS OF THE FOREIGN INVESTOR SERIES, SEE SECTION B 
BELOW.

Each Trust, which is an association taxable as a corporation under 
the Internal Revenue Code, qualified for and has elected tax treatment 
as a "regulated investment company" under the Internal Revenue 
Code of 1986, as amended (the "Code"). By qualifying for and electing 
such treatment, a Trust will not be subject to Federal income 
tax on taxable income or net capital gains distributed to Unit 
holders of such Trust. Under the Code, an excise tax is imposed 
on a Series of the Trust to the extent such Series fails to timely 
distribute specified percentages of the Trust's net investment 
income and capital gain net income. Each Trust intends to timely 
distribute taxable income and capital gains to avoid the imposition 
of such tax.

Each Trust files its Federal income tax returns on a calendar 
year basis. In any taxable year of a Trust, the distributions 
of a Trust's income, other than distributions which are designated 
as capital gain dividends, will constitute dividends taxable as 
ordinary income to the Unit holders to the extent that the amount 
of such distributions does not exceed the current and accumulated 
earnings and profits of a Trust. Distributions will not be eligible 
for the dividends received deduction for corporations. Under the 
Code, certain miscellaneous itemized deductions, such as investment 
expenses, tax return preparation fees and employee business expenses, 
will be deductible by individuals only to the extent they exceed 
2% of adjusted gross income. Miscellaneous itemized deductions 
subject to this limitation under present law do not include expenses 
incurred by a Trust as long as the Units of the Trust are held 
by or for 500 or more persons at all times during the taxable 
year. In the event the Units of the Trust are held by fewer than 
500 persons, additional taxable income will be realized by the 
individual (and other noncorporate) Unit holders in excess of 
the distributions received from the Trust. 

Distributions by a Trust that are designated by it as capital 
gain dividends will be taxable to Unit holders as long-term capital 
gains, regardless of the length of time the Units have been held 
by a Unit holder. However, if a Unit holder receives a long-term 
capital gain dividend (or is allocated a portion of a Trust's 
undistributed long-term capital gain) and sells his Units at a 
loss prior to holding them for 6 months, such loss will be recharacterized 
as long-term capital loss to the extent of such long-term capital 
gain received as a dividend or allocated to a Unit holder. Distributions 
in partial liquidation reflecting the proceeds of prepayments, 
redemptions, maturities (including monthly mortgage payments of 
principal) or sales of Securities (exclusive of net capital gain) 
will not be taxable to Unit holders to the extent that they represent 
a return of capital for tax purposes. The portion of distributions 
which represents a return of capital will, however 


Page 10

reduce a Unit holder's basis in his Units, and to the extent 
they exceed the basis of his Units will be taxable as a capital 
gain. A Unit holder will realize a taxable gain or loss when his 
Units are sold or redeemed for an amount different from his original 
cost after reduction for previous distributions to the extent 
that they represented a return of capital. Provided that Units 
constitute capital assets in the hands of a Unit holder, such 
gain or loss will constitute either a long-term or short-term 
capital gain or loss depending upon the length of time the Unit 
holder has held his Units. 

For taxpayers other than corporations, net capital gains are presently 
subject to a maximum stated marginal tax rate of 28 percent. However, 
it should be noted that legislative proposals are introduced from 
time to time that affect tax rates and could affect relative differences 
at which ordinary income and capital gains are taxed. A capital 
loss is long-term if the asset is held for more than one year 
and short-term if held for one year or less.

The Revenue Reconciliation Act of 1993 (the "Tax Act") raised 
tax rates on ordinary income while capital gains remain subject 
to a 28% maximum stated rate. Because some or all capital gains 
are taxed at a comparatively lower rate under the Tax Act, the 
Tax Act includes a provision that would recharacterize capital 
gains as ordinary income in the case of certain financial transactions 
that are "conversion transactions" effective for transactions 
entered into after April 30, 1993. Unit holders and prospective 
investors should consult with their tax advisers regarding the 
potential effect of this provision on their investment in Units.

If a Ginnie Mae has been purchased by a Trust at a market discount 
(i.e., for a purchase price less than its outstanding principal 
amount) unless the amount of market discount is "de minimis" as 
specified in the Code, each payment of principal on the Ginnie 
Mae will constitute ordinary income to the Trust to the extent 
of any accrued market discount. In the case of a Ginnie Mae, the 
amount of market discount that is deemed to accrue each month 
shall generally be the amount of discount that bears  the same 
ratio to the total amount of remaining market discount that the 
amount of interest paid during the accrual period (each month) 
bears to the total amount of interest remaining to be paid on 
the Ginnie Mae as of the beginning of the accrual period.

It should be noted that the Tax Act includes a provision which 
eliminates the exemption from United States taxation, including 
withholding taxes, for certain "contingent interest." The provision 
applies to interest received after December 31, 1993. No opinion 
is expressed herein regarding the potential applicability of this 
provision and whether United States taxation or withholding taxes 
could be imposed with respect to income derived from the Units 
as a result thereof. Unit holders and prospective investors should 
consult with their tax advisers regarding the potential effect 
of this provision on their investment in Units.

Each Unit holder of the Trust shall receive an annual statement 
describing the tax status of the distributions paid by the Trust.

Investment in the Trust may be particularly well suited for purchase 
by funds and accounts of individual investors that are exempt 
from Federal income taxes such as Individual Retirement Accounts, 
Keogh Plans, pension funds and other tax-deferred retirement plans 
(see "Why are Investments in Trusts Other than the Foreign Investor 
Series Suitable for Retirement Plans?").

B.  THE INFORMATION IN THIS SECTION B APPLIES ONLY TO THE FOREIGN 
INVESTOR SERIES OF THE FUND.

At the time of the closing for each Trust, Chapman and Cutler, 
special counsel for the Sponsor, rendered an opinion under then 
existing law, substantially to the effect that:

(1)     Each Trust is not an association taxable as a corporation 
but will be governed by the provisions of Subchapter J of Chapter 
1 of the Code.

(2)     Each Unit holder will be considered the owner of a pro rata 
portion of each Ginnie Mae in each Trust. The total cost to a 
Unit holder of his Units, including sales charges, is allocated 
among his pro rata portion of each Ginnie Mae (in proportion to 
the fair market values thereof on the date the Unit holder purchases 
his Units) in order to determine his tax cost for his pro rata 
portion of each Ginnie Mae.


Page 11

(3)     Each Unit holder will be considered to receive the interest 
on his pro rata portion of each Ginnie Mae when interest on such 
Ginnie Mae is deemed to be received by each Trust. The Code provides 
that in the case of individuals, "miscellaneous itemized deductions" 
are only deductible to the extent that they exceed 2 percent of 
an individual taxpayer's adjusted gross income. Miscellaneous 
itemized deductions subject to the limitation under present law 
include a Unit holder's pro rata share of expenses paid by the 
Trust, including fees of the Trustee and the Evaluator, but would 
not include amortizable premium on a Ginnie Mae.

(4)     A Unit holder will have a taxable event which may result 
in taxable gains (or losses) (i) upon redemption or sale of his 
Units, (ii) if the Trustee disposes of a Ginnie Mae, or (iii) 
upon receipt by the Trustee of principal payments of the Ginnie 
Mae. The amount of such gain (or loss) is measured by comparing 
the Unit holder's aliquot share of the total proceeds from the 
transaction with his tax basis in his Units or his pro rata interest 
in the Ginnie Mae as the case may be. Thus, a portion of each 
principal payment received by the Trust on a Unit holder's pro 
rata portion of a Ginnie Mae will constitute taxable gain to the 
Unit holder if his tax cost for his pro rata portion of such Ginnie 
Mae is less than the unpaid principal amount thereof at the time 
he acquired his Unit. Gains (or losses) recognized as a result 
of principal payments received on underlying mortgages issued 
by natural persons will be ordinary gains (or losses).

(5)     The Unit holder's aliquot share of the total proceeds received 
on the disposition of, or receipt of or principal payment with 
respect to, a Ginnie Mae by the Trust will constitute ordinary 
income (which will be treated as interest income for most purposes) 
to the extent it does not exceed the accrued market discount on 
the Ginnie Mae attributable to underlying mortgages. A Unit holder 
may generally elect to include market discount in income as such 
discount accrues. In general market discount is the excess, if 
any, of the Unit holder's pro rata portion of the outstanding 
principal balance of a Ginnie Mae over the Unit holder's initial 
tax cost for such pro rata portion, determined at the time such 
Unit holder acquires his Units. However, market discount with 
respect to any Ginnie Mae will generally be considered zero if 
it does not exceed the statutorily defined "de minimis" amount. 
If a Unit holder sells his Units, gain, if any, will constitute 
ordinary income to the extent of the aggregate of the accrued 
market discount on the Unit holder's pro rata portion of each 
Ginnie Mae attributable to underlying mortgages that are held 
by the Trust that has not previously been included in taxable 
income by such Unit holder. In the case of a Ginnie Mae, the amount 
of market discount that is deemed to accrue each month shall generally 
be the amount of discount that bears the same ratio to the total 
amount of remaining market discount that the amount of interest 
paid during the accrual period (each month) bears to the total 
amount of interest remaining to be paid on the Ginnie Mae as of 
the beginning of the accrual period. However, a Unit holder should 
consult his own tax adviser regarding the accrual of market discount. 
The deduction by a Unit holder for any interest expense incurred 
to purchase or carry Units will be reduced by the amount of any 
accrued market discount that has not yet been included in taxable 
income by such Unit holder. In general, the portion of any interest 
expense which is not currently deductible would be ultimately 
deductible when the accrued market discount is included in income.

Any other gains (or losses) will be capital gains (or losses), 
except in the case of a dealer or financial institution, and will 
be long-term if the Unit holder has held his Units for more than 
one year.

"The Revenue Reconciliation Act of 1993" (the "Tax Act") raises 
tax rates on ordinary income while capital gains remain subject 
to a 28% maximum stated rate. Because some or all capital gains 
are taxed at a comparatively lower rate under the Tax Act, the 
Tax Act includes a provision that recharacterizes capital gains 
as ordinary income in the case of certain financial transactions 
that are "conversion transactions" effective for transactions 
entered into after April 30, 1993. Unit holders and prospective 
investors should consult with their tax advisers regarding the 
potential effect of this provision on their investment in Units.

Page 12

A Unit holder of a Trust who is not a citizen or resident of the 
United States or a United States  domestic corporation (a "Foreign 
Investor") will generally not be subject to U.S. Federal income 
taxes, including withholding taxes on amounts distributed from 
the Trust (including any original issue discount) on, or any gain 
from the sale or other disposition of, his Units or the sale or 
disposition of any Ginnie Maes by the trustee, provided that (i) 
the interest income or gain is not effectively connected with 
the conduct by the Foreign Investor of a trade or business within 
the United States, (ii) with respect  to any gain, the Foreign 
Investor (if an individual) is not present in the United States 
for 183 days or more during the taxable year, and (iii) the Foreign 
Investor provides the required certification of his status of 
the matters contained in clauses (i) and (ii) above.

Unless an applicable treaty exemption applies and proper certification 
is made, amounts otherwise distributable by a Trust to a Foreign 
Investor will generally be subject to withholding taxes under 
Section 1441 of the Code unless the Unit holder timely provides 
his financial representative or the Trustee with a statement that 
(i) is signed by the Unit holder under penalties of perjury, (ii) 
certifies that such Unit holder is not a United States person, 
or in the case of an individual, that he is neither a citizen 
nor a resident of the United States, and (iii) provides the name 
and address of the Unit holder. The statement may be made, at 
the option of the person otherwise required to withhold, on Form 
W-8 or on a substitute form that is substantially similar to Form 
W-8. If the information provided on the statement changes, the 
beneficial owner must so inform the person otherwise required 
to withhold within 30 days of such change.

The foregoing discussions relate only to Federal income taxes 
on distributions by each Trust; such distributions may also be 
subject to state and local taxation. Unit holders should consult 
their own tax advisers regarding questions of state and local 
taxation applicable to the Units.

Foreign Unit holders should consult their own tax advisers with 
respect to the foreign and United States tax consequences or ownership 
of Units.

It should be remembered that even if distributions are reinvested, 
they are still treated as distributions for income tax purposes.

It should also be remembered that Unit holders may be required 
for Federal income tax purposes to include amounts in ordinary 
gross income in advance of the receipt of the cash attributable 
to such income.

Each Unit holder (other than a foreign investor who has properly 
provided the certifications described above) will be requested 
to provide the Unit holder's taxpayer identification number to 
the Trustee and to certify that the Unit holder has not been notified 
that payments to the Unit holder are subject to back-up withholding. 
If the proper taxpayer identification number and appropriate certification 
are not provided when requested, distributions by the Trust to 
such Unit holder will be subject to back-up withholding.

Winston & Strawn (previously named Cole & Deitz) served as Special 
Counsel at the Date of Deposit to Series 36 through 56, inclusive. 
In the opinion of such Special Counsel each Foreign Investor Series 
of the Trust is not an association taxable as a corporation and 
income received by such Series will be treated as the income of 
the Unit holders of such Series in the same manner as for Federal 
income tax purposes (subject to differences in accounting for 
discount and premium to the extent the State and/or City of New 
York do not conform to current Federal law).

C.  THE INFORMATION IN THIS SECTION C APPLIES TO ALL SERIES OF 
THE FUND.

The foregoing discussions relate only to Federal income taxes 
on distributions by each Series of the Trust; such distributions 
may also be subject to state and local taxation. Unit holders 
should consult their own tax advisers regarding questions of state 
and local taxation applicable to the Units. Foreign Unit Holders 
should consult their own tax advisers with respect to the United 
States Federal income and foreign tax consequences of ownership 
of Units.

It should be remembered that even if distributions are directed 
through the Universal Distribution Option or are reinvested through 
the Distribution Reinvestment Option, they are still treated as 
distributions for income tax purposes (see "How Can Distributions 
to Unit Holders be Reinvested?").

Why are Investments in Trusts Other than the Foreign Investor 
Series Suitable for Retirement Plans?

Page 13

THE INFORMATION PRESENTED IN THIS SECTION IS APPLICABLE TO ALL 
TRUSTS IN THE FUND OTHER THAN THE FOREIGN INVESTOR SERIES.

A Trust may be well suited for purchase by Individual Retirement 
Accounts, Keogh Plans, pension funds and other tax-deferred retirement 
plans. Generally, the Federal income tax relating to capital gains 
and income received in each of the foregoing plans is deferred 
until distributions are received. Distributions from such plans 
are generally treated as ordinary income but may, in some cases, 
be eligible for special averaging or tax-deferred rollover treatment. 
Investors considering participation in any such plan should review 
specific tax laws related thereto and should consult their attorneys 
or tax advisers with respect to the establishment and maintenance 
of any such plan. Such plans are offered by brokerage firms and 
other financial institutions. The Trust will waive the $1,000 
minimum investment requirement for tax-deferred retirement plan 
accounts. The minimum investment is $250 for tax-deferred retirement 
plans such as IRA accounts. Fees and charges with respect to such 
plans may vary.

How Can Distributions to Unit Holders be Reinvested? 

Universal Distribution Option. Unit holders may elect to participate 
in a Universal Distribution Option which permits a Unit holder 
to direct the Trustee to distribute principal or interest payments, 
or both, to any investment vehicle for which the Unit holder has 
an EXISTING account. For example, at a Unit holder's direction, 
the Trustee would distribute automatically on the applicable distribution 
date interest income or principal, including capital gains, or 
both on the participant's Units to, among other investment vehicles, 
a Unit holder's checking, bank savings, money market, insurance, 
reinvestment or any other account. All such distributions, of 
course, are subject to the minimum investment and sales charges, 
if any, of the particular investment vehicle to which distributions 
are directed. The Trustee will notify the participant of each 
distribution pursuant to the Universal Distribution Option. The 
Trustee will distribute directly to the Unit holder any distributions 
which are not accepted by the specified investment vehicle. A 
participant may at any time, by so notifying the Trustee in writing, 
elect to terminate his participation in the Universal Distribution 
Option and receive future distributions on his Units in cash. 

THE FOLLOWING DISTRIBUTION REINVESTMENT OPTION MAY NOT BE AN APPROPRIATE 
VEHICLE FOR INVESTORS IN THE FOREIGN INVESTOR SERIES SINCE DISTRIBUTIONS 
FROM OPPENHEIMER GOVERNMENT SECURITIES FUND, AS DEFINED BELOW, 
WILL BE SUBJECT TO UNITED STATES FEDERAL INCOME WITHHOLDING TAXES. 

Distribution Reinvestment Option For Other Than Foreign Investor 
Series. The Sponsor has entered into an arrangement with Oppenheimer 
Management Corporation which permits any Unit holder of a Series 
other than a Foreign Investor Series to elect to have each distribution 
of interest income or principal, including capital gains, or both, 
on his Units automatically reinvested in shares of Oppenheimer 
Government Securities Fund. Oppenheimer Management Corporation 
is the investment adviser of Oppenheimer Government Securities 
Fund which is an open-end, diversified management investment company. 
Oppenheimer Government Securities Fund seeks a high current return 
and safety of principal by investing principally in obligations 
issued or guaranteed by the U.S. Government or its agencies or 
instrumentalities, including GNMA mortgage-backed securities, 
as is considered consistent with the preservation of capital and 
maintenance of liquidity. The objectives and policies of Oppenheimer 
Government Securities Fund are presented in more detail in the 
prospectus pertaining to such Fund. 

Each person who purchases Units of a Series other than a Foreign 
Investor Series may use the card attached to Part One of the prospectus 
to request a prospectus describing Oppenheimer Government Securities 
Fund and a form by which such a person may elect to become a participant 
in the Distribution Reinvestment Option with respect to Oppenheimer 
Government Securities Fund. After electing participation, each 
distribution of interest income, or principal, including capital 
gains, or both, on the participant's Units will automatically 
be applied by the Trustee to purchase shares (or fractions thereof) 
of Oppenheimer Government Securities Fund without a sales charge 
and with no minimum initial and subsequent investment requirements. 

Distribution Reinvestment Option For The Foreign Investor Series. 
The Sponsor has entered into an arrangement with Centennial America 
Fund, L.P. ("Centennial America Fund") which permits Unit holders 
of

Page 14

a Foreign Investors Series to elect to have each distribution 
of interest income or principal, including capital gains, or both, 
on their Units automatically reinvested in shares of Centennial 
America Fund. Centennial Asset Management Corporation is the investment 
adviser of Centennial America Fund. Centennial America Fund is 
an open-end, diversified management investment company. Centennial 
America Fund is a portfolio specifically designed for non-resident 
foreign investors seeking high current return and safety of principal, 
maintenance of liquidity and exemption from U.S. Federal income 
and withholding taxes. The objectives and policies of Centennial 
America Fund are presented in more detail in the prospectus pertaining 
to such Fund.

Each person who purchases Units of a Foreign Investors Series 
may use the accompanying form to elect to become a participant 
in the Distribution Reinvestment Option with respect to Centennial 
America Fund. After electing participation, each distribution 
of interest income, or principal, including capital gains, or 
both, on the participant's Units will automatically be applied 
by the Trustee to purchase shares (or fractions thereof) of Centennial 
America Fund without a sales charge and with no minimum initial 
and subsequent investment requirements.

The transfer agent for Oppenheimer Government Securities Fund 
and Centennial America Fund will mail to each participant in the 
Distribution Reinvestment Option, confirmations of all transactions 
undertaken for such participant in connection with the receipt 
of distributions from The First Trust GNMA and the purchase of 
shares (or fractions thereof) of First Trust Government Fund and 
Centennial America Fund. 

A participant may at any time, by so notifying the Trustee in 
writing, elect to terminate his participation in the Distribution 
Reinvestment Option and receive future distributions on his Units 
in cash. There will be no charge or other penalty for such termination. 
The Sponsor, Oppenheimer Government Securities Fund and Centennial 
America Fund all have the right to terminate the Distribution 
Reinvestment Option, in whole or in part. 

It should be remembered that even if distributions are directed 
through the Universal Distribution Option or are reinvested through 
the Distribution Reinvestment Option, they are still treated as 
distributions for income tax purposes. 

Unit holders of Trusts of the Fund other than the Foreign Investor 
Series participating in IRAs, Keogh Plans, pension funds and other 
tax-deferred retirement plans may find it highly advantageous 
to participate in the Universal Distribution Option or the Distribution 
Reinvestment Option in order to keep the monies in the account 
fully invested at all times. Should either of such options be 
selected, an account with an identical registration to that established 
at the time the Units of a Trust are purchased will be set up 
in the option selected by the investor. Investors should consult 
with their plan custodian as to the appropriate disposition of 
distributions. Unless participants in IRAs, Keogh Plans and other 
tax-deferred retirement plans elect either the Universal Distribution 
Option or the Distribution Reinvestment Option, cash distributions 
will be sent to the custodian of the retirement plan and will 
not be sent to the investor. See "Why are Investments in Trusts 
other than the Foreign Investor Series Suitable for Retirement 
Plans?" 

                         PUBLIC OFFERING

How is the Public Offering Price Determined? 

Although it is not obligated to do so, the Sponsor intends to 
maintain a market for the Units and continuously to offer to purchase 
Units at prices, subject to change at any time, based upon the 
aggregate bid price of the Securities in the Portfolios of  each 
Series of the Fund plus interest accrued to the date of settlement. 
All expenses incurred in maintaining a secondary market, other 
than the fees of the Evaluator and the costs of the Trustee in 
transferring and recording the ownership of Units, will be borne 
by the Sponsor. If the supply of Units exceeds demand, or for 
some other business reason, the Sponsor may discontinue purchases 
of Units at such prices. IF A UNIT HOLDER WISHES TO DISPOSE OF 
HIS UNITS, HE SHOULD INQUIRE OF THE SPONSOR AS TO CURRENT MARKET 
PRICES PRIOR TO MAKING A TENDER FOR REDEMPTION TO THE TRUSTEE. 
Prospectuses relating to certain other funds indicate an intention, 
subject to change, on the part of the respective


Page 15

sponsors of such funds to repurchase units of those funds on the 
basis of a price higher than the bid prices of the securities 
in the funds. Consequently, depending upon the prices actually 
paid, the repurchase price of other sponsors for units of their 
funds may be computed on a somewhat more favorable basis than 
the repurchase price offered by the Sponsor for Units of each 
Series of the Fund in secondary market transactions. As in each 
Series of this Fund, the purchase price per unit of such funds 
will depend primarily on the value of the securities in the portfolios 
of such funds. 

Units are offered to the public at the Public Offering Price. 
The Public Offering Price is based on the Evaluator's determination 
of the aggregate bid price of the Securities in the Fund, including 
any money in the Principal Account other than money required to 
redeem tendered Units, and also includes a sales charge of 4.0% 
of the Public Offering Price (which is equivalent to 4.167% of 
the net amount invested) for Long Term Trusts or a sales charge 
of 3.5% of the Public Offering Price (which is equivalent to 3.627% 
of the net amount invested) for Medium Term Trusts. Also added 
to the Public Offering Price is a proportionate share of interest 
accrued but unpaid on the Securities to the date of settlement 
of Units. (See "How is Accrued Interest Treated?") 

The sales charge is reduced by a discount as indicated below for 
volume purchases: 


<TABLE>
<CAPTION>

                                        Long Term Trusts                                Medium Term Trusts      
                                ________________________________________        ________________________________________

                                Discount                Dealer Concession       Discount                Dealer Concession
Dollar Amount of                Expressed as a          Expressed as a          Expressed as a          Expressed as a
Transaction at                  Percentage of           Percentage of           Percentage of           Percentage of 
Public Offering Price           Public Offering Price   Public Offering Price   Public Offering Price   Public Offering Price
_____________________           _____________________   _____________________   _____________________   _____________________
<S>                             <C>                     <C>                     <C>                     <C>

$100,000-$249,999                .25%                   2.50%                    .25%                   2.05%
$250,000-$499,999                .50%                   2.50%                    .50%                   2.05%
$500,000-$999,999                .75%                   2.70%                    .75%                   2.05%
$1,000,000 or more              1.50%                   2.70%                   1.20%                   2.25%

</TABLE>

An investor may aggregate purchases of Units of two consecutive 
similar series of a particular GNMA Trust for purposes of calculating 
the discount for volume purchases listed above. Additionally, 
with respect to the employees, officers and directors (including 
their immediate families and trustees, custodian or a fiduciary 
for the benefit of such person) of Nike Securities L.P. and its 
subsidiaries the sales charge is reduced by 2% of the Public Offering 
Price for purchases of Units during the secondary offering period. 

Any such reduced sales charge, including pursuant to a Letter 
of Intent described below, shall be the responsibility of the 
selling dealer. For the Long Term Trusts, the Sponsor will pay 
Underwriters an additional concession of .10% for purchases between 
$100,000 and $499,999 and .20% for purchases over $500,000. This 
reduced sales charge structure will apply on all purchases of 
Units in the Fund by the same person on any one day from any one 
dealer. For purposes of calculating the applicable sales charge, 
purchases of Units in the Fund will not be aggregated with any 
other purchases by the same person of units in any series of tax-exempt 
unit investment trusts sponsored by Nike Securities L.P.  Additionally, 
Units purchased in the name of the spouse of a purchaser or in 
the name of a child of such purchaser under 21 years of age will 
be deemed for the purposes of calculating the applicable sales 
charge to be additional purchases by the purchaser. The reduced 
sales charges will also be applicable to a trustee or other fiduciary 
purchasing securities for a single trust or single fiduciary account. 

In addition, a purchaser desiring to purchase during a 12-month 
period $1,000,000 or more of a series of The First Trust GNMA 
may qualify for a reduced sales charge by signing a nonbinding 
Letter of Intent. After signing a Letter of Intent, at the date 
total purchases, less redemptions, of units of series of the First 
Trust GNMA by a purchaser (including units purchased in the name 
of the spouse of a purchaser or in the name of a child of such 
purchaser under 21 years of age) exceed $1,000,000, the selling 
dealer will make a retroactive reduction of the sales charge on 
such units in the amount of 1.5% (reduced by any previous discount 
received on the units) of the Public Offering Price of the units. 
If a purchaser does not complete the required purchases under 
the Letter of Intent within the 12-month period, no such retroactive 
sales charge


Page 16

reduction shall be made. To qualify as a purchase under a Letter 
of Intent, each purchase of units of The First Trust GNMA must 
equal or exceed $100,000. 

The aggregate bid price of the Securities in the Fund is determined 
by the Evaluator on the basis of bid prices or offering prices 
as is appropriate, (1) on the basis of current market prices for 
the Securities obtained from dealers or brokers who customarily 
deal in Securities comparable to those held by the Fund; (2) if 
such prices are not available for any of the Securities, on the 
basis of current market prices for comparable securities; (3) 
by determining the value of the Securities by appraisal; or (4) 
by any combination of the above. 

There is a period of a few days (usually about five business days), 
beginning on the first day of each month, during which the total 
amount of payments (including prepayments, if any) of principal 
for the preceding month on the various mortgages underlying each 
of the Ginnie Maes in the Fund will not yet have been reported 
by the issuer to GNMA and made generally available to the public. 
During this period, the precise principal amount of the underlying 
mortgages remaining outstanding for each Ginnie Mae in the Fund, 
and therefore the precise principal amount of such Security, will 
not be known, although the precise principal amount outstanding 
for the preceding month will be known. Therefore, the precise 
amount of principal to be acquired by the Trustee as a holder 
of such Securities which may be distributed to Unit holders with 
the next monthly distribution will not be known. The Sponsor does 
not expect that the amounts of such prepayments and the differences 
in such principal amounts from month to month will be material 
in relation to the Fund due to the number of mortgages underlying 
each Ginnie Mae and the number of such Securities in each series 
of the Fund. However, there can be no assurance that they will 
not be material. For purposes of the determination by the Evaluator 
of bid prices of the Ginnie Maes in the Fund and for purposes 
of calculations of accrued interest on the Units, during the period 
in each month prior to the time when the precise amounts of principal 
of the Ginnie Maes for the month become publicly available, the 
Evaluator will base its evaluations and calculations, which are 
the basis for calculations of the Public Offering Price, the Sponsor's 
Repurchase Price in the secondary market and the Redemption Price, 
upon the average monthly principal distribution for the preceding 
twelve month period. The Sponsor expects that the differences 
in such principal amounts from month to month will not be material 
to the applicable series of the Fund. Nevertheless, the Sponsor 
will adopt procedures as to pricing and evaluation for the Units 
of the Fund, with such modifications, if any, deemed necessary 
by the Sponsor for the protection of Unit holders designed to 
minimize the impact of such differences upon the calculation of 
the accrued interest on the Units, the Public Offering Price, 
the Sponsor's Repurchase Price in the secondary market and the 
Redemption Price. However, under circumstances involving significant 
prepayments of mortgages, Unit holders may receive principal distributions 
on the next ensuing distribution date in excess of the average 
monthly principal distribution for the preceding twelve month 
period. 

The Evaluator will be requested to make a determination of the 
aggregate price of the Securities in the Fund, on a bid price 
basis, as of the close of trading on the New York Stock Exchange 
(4:00 p.m. Eastern time) on each day on which it is open, effective 
for all sales, purchases or redemptions made subsequent to the 
last preceding determination. No evaluation will be made, however, 
on any day on which the Ginnie Mae securities markets are not 
generally open for business. 

Although payment is normally made five business days following 
the order for purchase, payment may be made prior thereto. Cash, 
if any, made available to the Sponsor prior to the date of settlement 
for the purchase of Units may be used in the Sponsor's business 
and may be deemed to be a benefit to the Sponsor, subject to the 
limitations of the Securities Exchange Act of 1934. Delivery of 
Certificates representing Units so ordered will be made five business 
days following such order or shortly thereafter. Initial transaction 
statements for Units held in uncertificated form representing 
Units so ordered will be issued to the registered owner of such 
Units within two business days of the issuance of such Units. 
See "How May Units be Redeemed?" for information regarding the 
ability to redeem Units ordered for purchase. 

How are Units Distributed? 


Page 17

The Sponsor intends to continue qualification of the Units for 
sale in a number of states. Sales may be made to dealers and others 
at prices which represent a concession or agency commission of 
$25.00 per 1,000 Units, but the Sponsor reserves the right to 
change the amount of the concession to dealers and others from 
time to time. Certain commercial banks are making Units of the 
Fund available to their customers on an agency basis. A portion 
of the sales charge paid by these customers is retained by or 
remitted to the banks in the amounts indicated in the second preceding 
sentence. Under the Glass-Steagall Act, banks are prohibited from 
underwriting Fund Units; however, the Glass-Steagall Act does 
permit certain agency transactions and the banking regulators 
have not indicated that these particular agency transactions are 
not permitted under such Act. 

What are the Profits of the Sponsor? 

The Sponsor will receive a gross sales commission equal to 4.0% 
of the Public Offering Price of the Units (equivalent to 4.167% 
of the net amount invested) for the Long Term Trusts and 3.5% 
of the Public Offering Price (equivalent to 3.627% of the net 
amount invested) for the Medium Term Trusts. The Sponsor will 
receive from dealers and others the excess of such gross sales 
commission over the dealer concession or agency commission. (See 
"How is the Public Offering Price Determined?") Although any reduced 
sales charge shall be the responsibility of the selling dealer, 
the Sponsor will reimburse dealers for discounts made available 
to purchasers as described in "How is the Public Offering Price 
Determined?" 

In maintaining a market for the Units, the Sponsor will also realize 
profits or sustain losses in the amount of any difference between 
the price at which Units are purchased (based on the bid prices 
of the Securities in the Fund) and the price at which Units are 
resold (which price is also based on the bid prices of the Securities 
in the Fund and includes a sales charge of 4.0% for the Long Term 
Trusts and 3.5% for the Medium Term Trusts) or redeemed (based 
on the bid prices of the Securities in the Fund). The secondary 
market Public Offering Price of Units may be greater or less than 
the cost of such Units to the Sponsor. 

                     RIGHTS OF UNIT HOLDERS

How is Evidence of Ownership Issued and Transferred? 

The Trustee is authorized to treat as the record owner of Units 
that person who is registered as such owner on the books of the 
Trustee. Ownership of Units may be evidenced by registered certificates 
executed by the Trustee and the Sponsor. Delivery of certificates 
representing Units ordered for purchase is normally made five 
business days following such order or shortly thereafter. Certificates 
are transferable by presentation and surrender to the Trustee 
properly endorsed or accompanied by a written instrument or instruments 
of transfer. Certificates to be redeemed must be properly endorsed 
or accompanied by a written instrument or instruments of transfer. 
A Unit holder must sign exactly as his name appears on the face 
of the certificate with the signature guaranteed by a participant 
in the Securities Transfer Agents Medallion Program ("STAMP") 
or such other signature guaranty program in addition to, or in 
substitution for, STAMP, as may be accepted by the Trustee. In 
certain instances the Trustee may require additional documents 
such as, but not limited to, trust instruments, certificates of 
death, appointments as executor or administrator or certificates 
of corporate authority. Record ownership may occur before settlement. 

Certificates will be issued in fully registered form, transferable 
only on the books of the Trustee in denominations of one Unit 
or any multiple thereof, numbered serially for purposes of identification. 

Unit holders may elect to hold their Units in uncertificated form. 
The Trustee will maintain an account for each such Unit holder 
and will credit each such account with the number of Units purchased 
by that Unit holder. Within two business days of the issuance 
or transfer of Units held in uncertificated form, the Trustee 
will send to the registered owner of Units a written initial transaction 
statement containing a description of the Fund; the number of 
Units issued or transferred; the name, address and taxpayer identification 
number, if any, of the new registered owner; a notation of any 
liens and restrictions of the issuer and any adverse claims to 
which such Units are or may be subject or a statement that there 
are no such liens, restrictions or adverse claims; and the date 
the transfer was registered. Uncertificated Units are transferable 
through the same procedures applicable to Units evidenced by certificates 
(described above), except

Page 18

that no certificate need be presented to the Trustee and no certificate 
will be issued upon transfer unless requested by the Unit holder. 
A Unit holder may at any time request the Trustee to issue certificates 
for Units. 

Although no such charge is now made or contemplated, a Unit holder 
may be required to pay $2.00 to the Trustee per certificate reissued 
or transferred, and to pay any governmental charge that may be 
imposed in connection with each such transfer or exchange. For 
new certificates issued to replace destroyed, stolen, or lost 
certificates, the Unit holder may be required to furnish indemnity 
satisfactory to the Trustee and pay such expenses as the Trustee 
may incur. Mutilated certificates must be surrendered to the Trustee 
for replacement. 

How are Interest and Principal Distributed? 

The terms of the Ginnie Maes provide for payment to the holders 
thereof (including the Fund) on the fifteenth day of each month 
of amounts collected by or due to the issuers thereof with respect 
to the underlying mortgages during the preceding month, except 
for the first payment, which is not due until 45 days after the 
initial issue date of each Ginnie Mae. Interest from the Fund, 
including moneys representing penalties for the failure to make 
timely payments on Securities or liquidated damages for default 
or breach of any condition or term of the Securities will be distributed 
as specified in Part One for each Trust on a pro rata basis to 
Unit holders of record as of the preceding Record Date. All distributions 
will be net of applicable expenses. 

The pro rata share of cash in the Principal Account will also 
be computed as of the first day of each month and distributions 
to the Unit holders as of such Record Date will be made as specified 
in Part One for each Trust. Proceeds from the disposition of any 
of the Securities or amounts representing principal on the Securities 
received after such Record Date and prior to the following Distribution 
Date will be held in the Principal Account and not distributed 
until the next Distribution Date. The Trustee is not required 
to pay interest on funds held in the Principal or Interest Account 
(but may itself earn interest thereon and therefore benefits from 
the use of such funds) nor to make a distribution from the Principal 
Account unless the amount available for distribution shall equal 
at least $1.00 per 1,000 Units. 

The Trustee will credit to the Interest Account all interest received 
by the Fund, including moneys representing penalties for the failure 
to make timely payments on Securities or liquidated damages for 
default or breach of any condition or term of the Securities and 
that part of the proceeds of any disposition of Securities which 
represents accrued interest. Other receipts will be credited to 
the Principal Account. Persons who purchase Units between a Record 
Date and a Distribution Date will receive their first distribution 
on the second Distribution Date after the purchase. 

As of the first day of each month, the Trustee will deduct from 
the Interest Account and, to the extent funds are not sufficient 
therein, from the Principal Account, amounts necessary to pay 
the expenses of the Fund. The Trustee also may withdraw from said 
accounts such amounts, if any, as it deems necessary to establish 
a reserve for any governmental charges payable out of the Fund. 
Amounts so withdrawn shall not be considered a part of the Fund's 
assets until such time as the Trustee shall return all or any 
part of such amounts to the appropriate account. In addition, 
the Trustee may withdraw from the Interest Account and the Principal 
Account such amounts as may be necessary to cover redemption of 
Units by the Trustee. 

Record Dates and Distribution Dates for monthly distributions 
will be as indicated in Part One for each Trust. Distributions 
for an IRA, Keogh, pension funds or other tax-deferred retirement 
plan will not be sent to the individual Unit holder; these distributions 
will go directly to the custodian of the plan to avoid the penalties 
associated with premature withdrawals from such accounts. 

What Reports Will Unit Holders Receive? 

The Trustee shall furnish Unit holders in connection with each 
distribution a statement of the amount of interest, if any, and 
the amount of other receipts, if any, which are being distributed, 
expressed in each case as a dollar amount per 1,000 Units. Within 
a reasonable time after the end of each calendar year, the Trustee 
will furnish to each person who at any time during the calendar 
year was a Unit holder of record, a statement as to (1) the Interest 
Account: interest received (including amounts representing interest 
received


Page 19

upon any disposition of Securities, penalties for the failure 
to make timely payments on Securities or liquidated damages for 
default or breach of any condition or term of the Securities), 
deductions for payment of applicable taxes and for fees and expenses 
of the Fund, redemption of Units and the balance remaining after 
such distributions and deductions, expressed both as a total dollar 
amount and as a dollar amount representing the pro rata share 
per 1,000 Units outstanding on the last business day of such calendar 
year; (2) the Principal Account: payments of principal on Securities, 
the dates of disposition of any Securities and the net proceeds 
received therefrom (excluding any portion representing interest), 
deduction for payment of applicable taxes and for fees and expenses 
of the Fund, redemptions of Units, and the balance remaining after 
such distributions and deductions expressed both as a total dollar 
amount and as a dollar amount per 1,000 Units; (3) the Securities 
held and the number of Units outstanding on the last business 
day of such calendar year; (4) the Redemption Price per 1,000 
Units based upon the last computation thereof made during such 
calendar year; (5) the dollar amounts actually distributed during 
such calendar year from the Interest Account and from the Principal 
Account, separately stated; and (6) such other information as 
the Trustee may deem appropriate. Unit holders of Units in uncertificated 
form shall receive no less frequently than once each year a dated 
written statement containing the name, address and taxpayer identification 
number, if any, of the registered owner, the number of Units registered 
in the name of the registered owner on the date of the statement 
and certain other information that will be provided as required 
under applicable law. 

In order to comply with Federal and state tax reporting requirements, 
Unit holders will be furnished, upon request to the Trustee, evaluations 
of the Securities furnished to it by the Evaluator. 

How May Units be Redeemed? 

A Unit holder may redeem all or a portion of his Units by tender 
to the Trustee at its corporate trust office in the City of New 
York of the certificates representing the Units to be redeemed, 
or, in the case of uncertificated Units, delivery of a request 
for redemption, duly endorsed or accompanied by proper instruments 
of transfer with signature guaranteed as explained above (or by 
providing satisfactory indemnity, as in connection with lost, 
stolen or destroyed certificates), and payment of applicable governmental 
charges, if any. No redemption fee will be charged. On the seventh 
calendar day following such tender, or if the seventh calendar 
day is not a business day, on the first business day prior thereto, 
the Unit holder will be entitled to receive in cash an amount 
for each Unit equal to the Redemption Price per Unit next computed 
after receipt by the Trustee of such tender of Units. The "date 
of tender" is deemed to be the date on which Units are received 
by the Trustee, except that as regards Units received after the 
close of trading on the New York Stock Exchange (4:00 p.m. Eastern 
time), the date of tender is the next day on which such Exchange 
is open for trading and such Units will be deemed to have been 
tendered to the Trustee on such day for redemption at the redemption 
price computed on that day. Units so redeemed shall be cancelled. 

Accrued interest to the settlement date paid on redemption shall 
be withdrawn from the Interest Account or, if the balance therein 
is insufficient, from the Principal Account. All other amounts 
paid on redemption shall be withdrawn from the Principal Account. 

The Redemption Price (as well as the secondary market Public Offering 
Price) will be determined on the basis of the bid price of the 
Securities in the Fund as of the close of trading on the New York 
Stock Exchange (4:00 p.m. Eastern time) on the date any such determination 
is made. The Redemption Price per Unit is the pro rata share of 
each Unit determined by the Trustee on the basis of (1) the cash 
on hand in the Fund or moneys in the process of being collected, 
(2) the value of the Securities in the Fund based on the bid prices 
of the Securities and (3) interest accrued thereon, less (a) amounts 
representing taxes or other governmental charges payable out of 
the Fund and (b) the accrued expenses of the Fund. The Evaluator 
may determine the value of the Securities in the Fund (1) on the 
basis of current bid prices of the Securities obtained from dealers 
or brokers who customarily deal in securities comparable to those 
held by the Fund, (2) on the basis of bid prices for securities 
comparable to any securities for which bid prices are not available, 
(3) by determining the value of the Securities by appraisal, or 
(4) by any combination of the


Page 20

above. See "How is the Public Offering Price Determined?" for 
information with respect to the uncertainty during certain periods 
of each month of the precise amount of principal and accrued interest 
of the Ginnie Maes. 

The difference between the bid and offering price of such Securities 
may be expected to average 1/4 to 1/2 of 1% of the principal amount 
of such Securities. Therefore, the price at which Units may be 
redeemed could be less than the price paid by the Unit holder. 

The Trustee is empowered to sell underlying Securities in order 
to make funds available for redemption. To the extent that Securities 
are sold, the size and diversity of the Fund will be reduced. 
Such sales may be required at a time when Securities would not 
otherwise be sold and might result in lower prices than might 
otherwise be realized. Ginnie Maes are sold in minimum face amounts 
which range from $25,000 to $100,000. Due to the minimum principal 
amount in which Ginnie Maes may be required to be sold, the proceeds 
of such sales may exceed the amount necessary for payment of Units 
redeemed. Such excess proceeds will be placed in the Principal 
Account and eligible for distribution pro rata to all remaining 
Unit holders of record. 

The right of redemption may be suspended and payment postponed 
for any period during which the New York Stock Exchange is closed, 
other than for customary weekend and holiday closings, or during 
which the Securities and Exchange Commission determines that trading 
on that Exchange is restricted or an emergency exists, as a result 
of which disposal or evaluation of the Securities is not reasonably 
practicable, or for such other periods as the Securities and Exchange 
Commission may by order permit. 

How May Units be Purchased by the Sponsor? 

The Trustee shall notify the Sponsor of any tender of Units for 
redemption. If the Sponsor's bid price in the secondary market 
at that time equals or exceeds the Redemption Price per Unit, 
it may purchase such Units by notifying the Trustee before the 
close of business on the second succeeding business day and by 
making payment therefor to the Unit holder not later than the 
day on which the Units would otherwise have been redeemed by the 
Trustee. Units held by the Sponsor may be tendered to the Trustee 
for redemption as any other Units. 

The offering price of any Units acquired by the Sponsor will be 
in accord with the Public Offering Price described in the then 
currently effective prospectus describing such Units. Any profit 
or loss resulting from the resale or redemption of such Units 
will belong to the Sponsor. 

How May Securities be Removed from the Fund? 

The Sponsor is empowered, but not obligated, to direct the Trustee 
to dispose of Securities in the event certain events occur that 
adversely affect the value of Securities including default in 
payment of interest or principal, default in payment of interest 
or principal of other obligations guaranteed or backed by the 
full faith and credit of the United States of America, institution 
of legal proceedings, default under other documents adversely 
affecting debt service, decline in price or the occurrence of 
other market or credit factors. 

If any default in the payment of principal or interest on any 
Security occurs and if the Sponsor fails to instruct the Trustee 
to sell or to hold such Security within thirty days after notification 
by the Trustee to the Sponsor of such default, the Trustee may, 
in its discretion, sell the defaulted Security and not be liable 
for any depreciation or loss thereby incurred. 

The Trustee is also empowered to sell, for the purpose of redeeming 
Units tendered by any Unit holder and for the payment of expenses 
for which funds may not be available, such of the Securities in 
a list furnished by the Sponsor as the Trustee in its sole discretion 
may deem necessary. Except as stated under "What is the First 
Trust GNMA?", the acquisition by a Trust of any securities other 
than the Securities initially deposited is prohibited. 

        INFORMATION AS TO SPONSOR, TRUSTEE AND EVALUATOR 

Who is the Sponsor? 

Page 21


Nike Securities L.P., the Sponsor, specializes in the underwriting, 
trading and distribution of unit investment trusts and other securities. 
Nike Securities L.P., an Illinois limited partnership formed in 
1991, acts as Sponsor for successive series of The First Trust 
Combined Series, The First Trust Special Situations Trust, The 
First Trust Insured Corporate Trust, The First Trust of Insured 
Municipal Bonds, The First Trust GNMA, Templeton Growth and Treasury 
Trust, Templeton Foreign Fund & U.S. Treasury Securities Trust 
and The Advantage Growth and Treasury Securities Trust. First 
Trust introduced the first insured unit investment trust in 1974 
and to date more than $8 billion in First Trust unit investment 
trusts have been deposited. The Sponsor's employees include a 
team of professionals with many years of experience in the unit 
investment trust industry. The Sponsor is a member of the National 
Association of Securities Dealers, Inc. and Securities Investor 
Protection Corporation and has its principal offices at 1001 Warrenville 
Road, Lisle, Illinois 60532; telephone number (708) 241-4141. 
As of December 31, 1993, the total partners' capital of Nike Securities 
L.P. was $12,743,032 (audited). (This paragraph relates only to 
the Sponsor and not to the Trust or to any series thereof or to 
any other Underwriter. The information is included herein only 
for the purpose of informing investors as to the financial responsibility 
of the Sponsor and its ability to carry out its contractual obligations. 
More detailed financial information will be made available by 
the Sponsor upon request.)

Who is the Trustee? 

The Trustee is United States Trust Company of New York with its 
principal place of business at 45 Wall Street, New York, New York 
10005 and its unit investment office at 770 Broadway, New York, 
New York 10003. Unit Holders who have questions regarding the 
Fund may call the Customer Service Help Line at 1-800-682-7520. 
The Trustee is a member of the New York Clearing House Association 
and is subject to supervision and examination by the Comptroller 
of the Currency, the Federal Deposit Insurance Corporation and 
the Board of Governors of the Federal Reserve System.

The Trustee, whose duties are ministerial in nature, has not participated 
in the selection of the Securities. For information relating to 
the responsibilities of the Trustee under the Indenture, reference 
is made to the material set forth under "Rights of Unit Holders."

The Trustee and any successor trustee may resign by executing 
an instrument in writing and filing the same with the Sponsor 
and mailing a copy of a notice of resignation to all Unit holders. 
Upon receipt of such notice, the Sponsor is obligated to appoint 
a successor trustee promptly. If the Trustee becomes incapable 
of acting or becomes bankrupt or its affairs are taken over by 
public authorities, the Sponsor may remove the Trustee and appoint 
a successor as provided in the Indenture. If upon resignation 
of a trustee no successor has accepted the appointment within 
30 days after notification, the retiring trustee may apply to 
a court of competent jurisdiction for the appointment of a successor. 
The resignation or removal of a trustee becomes effective only 
when the successor trustee accepts its appointment as such or 
when a court of competent jurisdiction appoints a successor trustee.

Any corporation into which a Trustee may be merged or with which 
it may be consolidated, or any corporation resulting from any 
merger or consolidation to which a Trustee shall be a party, shall 
be the successor Trustee. The Trustee must be a banking corporation 
organized under the laws of the United States or any State and 
having at all times an aggregate capital, surplus and undivided 
profits of not less than $5,000,000.

Limitations on Liabilities of Sponsor and Trustee 

The Sponsor and Trustee shall be under no liability to Unit holders 
for taking any action or for refraining from taking any action 
in good faith pursuant to the Indenture, or for errors in judgment, 
but shall be liable only for their own willful misfeasance, bad 
faith, gross negligence (ordinary negligence in the case of the 
Trustee) or reckless disregard of their obligations and duties. 
The Trustee shall not be liable for depreciation or loss incurred 
by reason of the sale by the Trustee of any of the Securities. 
In the event of the failure of the Sponsor to act under the Indenture, 
the Trustee may act thereunder and shall not be liable for any 
action taken by it in good faith under the Indenture. 

Page 22


The Trustee shall not be liable for any taxes or other governmental 
charges imposed upon or in respect of the Securities or upon the 
interest thereon or upon it as Trustee under the Indenture or 
upon or in respect of the Fund which the Trustee may be required 
to pay under any present or future law of the United States of 
America or of any other taxing authority having jurisdiction. 
In addition, the Indenture contains other customary provisions 
limiting the liability of the Trustee. 

If the Sponsor shall fail to perform any of its duties under the 
Indenture or become incapable of acting or become bankrupt or 
its affairs are taken over by public authorities, then the Trustee 
may (a) appoint a successor Sponsor at rates of compensation deemed 
by the Trustee to be reasonable and not exceeding amounts prescribed 
by the Securities and Exchange Commission, or (b) terminate the 
Indenture and liquidate the Fund as provided herein, or (c) continue 
to act as Trustee without terminating the Indenture. 

Who is the Evaluator? 

The Evaluator is Securities Evaluation Service, Inc., 531 East 
Roosevelt Road, Suite 200, Wheaton, Illinois  60187. The Evaluator 
may resign or may be removed by the Sponsor and the Trustee, in 
which event the Sponsor and the Trustee are to use their best 
efforts to appoint a satisfactory successor. Such resignation 
or removal shall become effective upon the acceptance of appointment 
by the successor Evaluator. If upon resignation of the Evaluator 
no successor has accepted appointment within 30 days after notice 
of resignation, the Evaluator may apply to a court of competent 
jurisdiction for the appointment of a successor. 

The Trustee, Sponsor and Unit holders may rely on any evaluation 
furnished by the Evaluator and shall have no responsibility for 
the accuracy thereof. Determinations by the Evaluator under the 
Indenture shall be made in good faith upon the basis of the best 
information available to it, provided, however, that the Evaluator 
shall be under no liability to the Trustee, Sponsor or Unit holders 
for errors in judgment. This provision shall not protect the Evaluator 
in any case of willful misfeasance, bad faith, gross negligence 
or reckless disregard of its obligations and duties. 

                       OTHER INFORMATION 

How May the Indenture be Amended or Terminated? 

The Sponsor and the Trustee have the power to amend the Indenture 
without the consent of any of the Unit holders when such an amendment 
is (1) to cure any ambiguity or to correct or supplement any provision 
of the Indenture which may be defective or inconsistent with any 
other provision contained therein, or (2) to make such other provisions 
as shall not adversely affect the interest of the Unit holders 
(as determined in good faith by the Sponsor and the Trustee), 
provided that the Indenture is not amended to increase the number 
of Units issuable thereunder or to permit the deposit or acquisition 
of securities either in addition to or in substitution for any 
of the Securities initially deposited in the Fund, except for 
the purchase of additional Securities for Series of the Fund (other 
than the Foreign Investor Series) pursuant to the Indenture. In 
the event of any amendment, the Trustee is obligated to notify 
promptly all Unit holders of the substance of such amendment. 

The Trust may be liquidated at any time by consent of 100% of 
the Unit holders or by the Trustee when the value of the Fund, 
as shown by any evaluation, is less than 40% of the aggregate 
principal amount of the Securities initially deposited in the 
Fund or in the event that Units not yet sold aggregating more 
than 60% of the Units initially deposited are tendered for redemption 
by the Underwriters, including the Sponsor. The Indenture will 
terminate upon the redemption, sale or other disposition of the 
last Security held thereunder, but in no event shall it continue 
beyond the end of the calendar year preceding the fiftieth anniversary 
of the execution of the Indenture. In the event of termination, 
written notice thereof will be sent by the Trustee to all Unit 
holders. Within a reasonable period after termination, the Trustee 
will sell any Securities remaining in the Fund, and, after paying 
all expenses and charges incurred by the Fund, will distribute 
to each Unit holder (including the Sponsor if it then holds any 
Units), upon surrender for cancellation of his Units, his pro 
rata share of the balances remaining in the Interest and Principal 
Accounts, all as provided in the Indenture. 

Page 23


Legal Opinions 

The legality of the Units offered hereby was passed upon on the 
Date of Deposit for each series by Chapman and Cutler, 111 West 
Monroe Street, Chicago, Illinois  60603, as counsel for the Sponsor. 
Winston & Strawn (previously named Cole & Deitz), 175 Water Street, 
New York, New York  10038, served as counsel for the Trustee on 
the Date of Deposit for Series 36 through 56 of the Fund. Carter, 
Ledyard & Milburn, 2 Wall Street, New York, New York 10005, acted 
as counsel for the Trustee for Series 57 through 66, inclusive, 
and will act as Counsel for the Trustee for subsequent Series 
of the Fund.

Experts

The financial statements, including the Portfolio, of each Trust 
contained in Part One of the Prospectus and Registration Statement 
have been audited by Ernst & Young, independent auditors, as set 
forth in their reports thereon appearing elsewhere therein and 
in the Registration Statement, and are included in reliance upon 
such reports given upon the authority of such firm as experts 
in accounting and auditing.

      DESCRIPTION OF STANDARD & POOR'S CORPORATION RATING*
*       As described by Standard & Poor's Corporation. 


A Standard & Poor's Corporation's rating on the units of an investment 
trust (hereinafter referred to collectively as "units" and "trust") 
is a current assessment of creditworthiness with respect to the 
investments held by such trust. This assessment takes into consideration 
the financial capacity of the issuers and of any guarantors, insurers, 
lessees, or mortgagors with respect to such investments. The assessment, 
however, does not take into account the extent to which trust 
expenses or portfolio asset sales for less than the trust's purchase 
price will reduce payment to the Unit holder of the interest and 
principal required to be paid on the portfolio assets. In addition, 
the rating is not a recommendation to purchase, sell, or hold 
units, inasmuch as the rating does not comment as to market price 
of the units or suitability for a particular investor. 

Trusts rated "AAA" are composed exclusively of assets that are 
rated "AAA" by Standard & Poor's or, have, in the opinion of Standard 
& Poor's, credit characteristics comparable to assets rated "AAA," 
or certain short-term investments. Standard & Poor's defines its 
"AAA" rating for such assets as the highest rating assigned by 
Standard & Poor's to a debt obligation. Capacity to pay interest 
and repay principal is very strong. 

Page 24

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Page 27



<TABLE>
<CAPTION>

CONTENTS:
<S>                                                             <C>

The First Trust (registered trademark) GNMA:
        What is the First Trust GNMA?                            3
        What is the Rating of the Units?                         7
        What are Estimated Current Return
                and Estimated Long-Term Return?                  7
        How is Accrued Interest Treated?                         8
        What are the Expenses and Charges?                       9
        What is the Tax Status of Unit Holders?                 10
        Why are Investments in Trusts Other than the 
                Foreign Investor Series Suitable 
                   for Retirement Plans?                        13
        How Can Distributions to Unit Holders be 
                Reinvested?                                     14
Public Offering:
        How is the Public Offering Price Determined?            15
        How are Units Distributed?                              17
        What are the Profits of the Sponsor?                    18
Rights Of Unit Holders:
        How is Evidence of Ownership Issued and 
                Transferred?                                    18
        How are Interest and Principal Distributed?             19
        What Reports Will Unit Holders Receive?                 19
        How May Units be Redeemed?                              20
        How May Units be Purchased by the Sponsor?              21
        How May Securities be Removed from the Fund?            21
Information as  to Sponsor, Trustee and Evaluator:
        Who is the Sponsor?                                     21
        Who is the Trustee?                                     22
        Limitations on Liabilities of Sponsor and Trustee       22
        Who is the Evaluator?                                   23
Other Information:
        How May the Indenture be Amended or 
                Terminated?                                     23
        Legal Opinions                                          23
        Experts                                                 24
Description of Standard & Poor's Corporation Rating             24

</TABLE>
                                __________

        THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, 
OR A SOLICITATION OF AN OFFER TO BUY, SECURITIES IN ANY JURISDICTION 
TO ANY PERSON TO WHOM IT IS NOT LAWFUL TO MAKE SUCH OFFER IN SUCH 
JURISDICTION.
        THIS PROSPECTUS DOES NOT CONTAIN ALL THE INFORMATION SET 
FORTH IN THE REGISTRATION STATEMENTS AND EXHIBITS RELATING THERETO, 
WHICH THE TRUST HAS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, 
WASHINGTON, D.C. UNDER THE SECURITIES ACT OF 1933 AND THE INVESTMENT 
COMPANY ACT OF 1940, AND TO WHICH REFERENCE IS HEREBY MADE.


                   FIRST TRUST (registered trademark)

                         THE FIRST TRUST GNMA

                           Prospectus
                            Part Two
                         April 28, 1994




               First Trust (registered trademark)

                1001 Warrenville Road, Suite 300
                      Lisle, Illinois 60532
                         1-708-241-4141



                            Trustee:

                   United States Trust Company
                           of New York
                          770 Broadway
                    New York, New York 10003
                         1-800-682-7520


                     THIS PART TWO MUST BE
                   ACCOMPANIED BY PART ONE.

                PLEASE RETAIN THIS PROSPECTUS
                     FOR FUTURE REFERENCE

Page 28




              CONTENTS OF POST-EFFECTIVE AMENDMENT
                    OF REGISTRATION STATEMENT
                                
     
     This  Post-Effective  Amendment  of  Registration  Statement
comprises the following papers and documents:

                          The facing sheet

                          The prospectus

                          The signatures

                          The Consent of Independent Auditors

































                               S-1
                           SIGNATURES
     
     Pursuant to the requirements of the Securities Act of  1933,
the  Registrant, The First Trust GNMA Series 50 and 51, certifies
that  it meets all of the requirements for effectiveness of  this
Registration  Statement  pursuant  to  Rule  485(b)   under   the
Securities  Act  of 1933 and has duly caused this  Post-Effective
Amendment  of  its  Registration Statement to be  signed  on  its
behalf  by  the  undersigned thereunto  duly  authorized  in  the
Village of Lisle and State of Illinois on April 29, 1994.
                                    
                              THE FIRST TRUST GNMA SERIES 50 and
                                51
                                                    (Registrant)
                              By        NIKE SECURITIES L.P.
                                                     (Depositor)
                              
                              
                              By       Carlos E. Nardo
                      Senior Vice President
                              
     
     Pursuant to the requirements of the Securities Act of  1933,
this  Post-Effective Amendment of Registration Statement has been
signed  below by the following person in the capacity and on  the
date indicated:

Signature                     Title                    Date

Robert D. Van Kampen  Sole Director of     )
                      Nike Securities      )
                        Corporation,       )
                    the General Partner    )    April 29, 1994
                  of Nike Securities L.P.  )
                                           )
                                           )   Carlos E. Nardo
                                           )  Attorney-in-Fact


*    The title of the person named herein represents his capacity
     in and relationship to Nike Securities L.P., Depositor.
     
**   An  executed copy of the related power of attorney was filed
     with  the  Securities and Exchange Commission in  connection
     with  the  Amendment No. 1 to Form S-6 of  The  First  Trust
     Special Situations Trust, Series 18 (File No. 33-42683)  and
     the same is hereby incorporated herein by this reference.
     
                               S-2
                 CONSENT OF INDEPENDENT AUDITORS
                                

We  consent  to  the  reference to our  firm  under  the  caption
"Experts"  and to the use of our report dated March 18,  1994  in
this  Post-Effective Amendment to the Registration Statement  and
related Prospectus of The First Trust GNMA dated April 15, 1994.



                                        ERNST & YOUNG





Chicago, Illinois
April 14, 1994



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