Exhibit 12.1
TRANSDIGM INC.
Computation of Ratio of Earnings to Fixed Charges
Thirteen
Weeks Ended Unaudited
Unaudited ------------------------ Pro Forma
Pro Forma December 26, January 1, January 1,
1994 1995 1996 1997 1998 1998 1997 1999 1999
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Earnings:
Total earnings (loss) $(5,323) $ (261) $1,175 $3,172 $14,137 6,328 4,118 (24,824) 2,094
Income tax provision (credit) (2,307) 134 2,045 5,193 12,986 4,000 2,590 (7,566) 1,281
Extraordinary Item 1,462
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Pre-tax earnings (loss) (7,630) (127) 3,220 9,827 27,123 10,328 6,708 (32,390) 3,375
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Fixed charges:
Interest charges 4,823 5,193 4,510 3,463 3,175 28,952 1,046 2,276 6,884
Interest factor of operating
rents 198 190 188 178 197 300 50 50 75
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Total fixed charges 5,021 5,383 4,698 3,641 3,372 29,252 1,096 2,326 6,959
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Earnings as adjusted (2,609) 5,256 7,918 13,468 30,495 39,580 7,804 (30,064) 10,334
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Ratio of earnings to fixed charges - - 1.7 3.7 9.0 1.4 7.1 -- 1.5
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