<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM AVIATION
GROUP'S FINANCIAL STATEMENTS FOR THE FISCAL YEAR ENDED JUNE 30, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS FOR ITS 2000
FISCAL YEAR
</LEGEND>
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUN-30-2000
<PERIOD-START> JUL-01-1999
<PERIOD-END> JUN-30-2000
<CASH> 432,000
<SECURITIES> 0
<RECEIVABLES> 2,053,000
<ALLOWANCES> (35,000)
<INVENTORY> 1,049,000
<CURRENT-ASSETS> 9,714,000
<PP&E> 4,309,000
<DEPRECIATION> (1,656,000)
<TOTAL-ASSETS> 63,744,000
<CURRENT-LIABILITIES> 19,325,000
<BONDS> 728,000
0
4,000
<COMMON> 48,000
<OTHER-SE> 43,639,000
<TOTAL-LIABILITY-AND-EQUITY> 13,052,000
<SALES> 13,381,000
<TOTAL-REVENUES> 13,381,000
<CGS> 8,805,000
<TOTAL-COSTS> 8,805,000
<OTHER-EXPENSES> 10,807,000
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> (656,000)
<INCOME-PRETAX> (7,128,000)
<INCOME-TAX> 0
<INCOME-CONTINUING> (6,933,000)
<DISCONTINUED> (195,000)
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (7,128,000)
<EPS-BASIC> (1.79)
<EPS-DILUTED> (1.79)
</TABLE>