<PAGE>
EXHIBIT 11.1
WILLIS LEASE FINANCE CORPORATION
AND SUBSIDIARIES
Computation of Earnings Per Share
<TABLE>
<CAPTION>
Three Months Ended June 30 Six Months Ended June 30
------------------------------------- -------------------------------------
2000 1999 2000 1999
------------ ----------- ----------- ----------
(in thousands, except per share data) (in thousands, except per share data)
<S> <C> <C> <C> <C>
Net income
Basic
Earnings:
Net income $1,854 $2,787 $3,536 $5,573
------ ------ ------ ------
Shares:
Average common shares outstanding 7,402 7,374 7,402 7,368
------ ------ ------ ------
Basic earnings per common share $ 0.25 $ 0.38 $ 0.48 $ 0.76
------ ------ ------ ------
Assuming Full Dilution
Earnings:
Net income $1,854 $2,787 $3,536 $5,573
------ ------ ------ -------
Shares:
Diluted average common shares outstanding 7,495 7,453 7,489 7,455
------ ------ ------ -------
Earnings per common share assuming full dilution $ 0.25 $ 0.37 $ 0.47 $ 0.75
------ ------ ------ -------
</TABLE>
Supplemental information:
Difference between average common shares outstanding
to calculate basic and assuming full dilution is due to options
outstanding under the 1996 Stock Options/Stock Issuance
Plan and warrants issued in conjunction with the initial public offering.
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