EXHIBIT 12.1 DECRANE AIRCRAFT HOLDINGS, INC. AND SUBSIDIARIES EARNINGS TO FIXED CHARGES RATIO (DOLLARS IN THOUSANDS) HISTORICAL: (PREDECESSOR) --------------------------------------------------------------------------------- (SUCCESSOR) EIGHT ------------- NINE MONTHS MONTHS ONE MONTH YEAR ENDED DECEMBER 31, ENDED ENDED ENDED ----------------------------------------------------- SEPTEMBER 30, AUGUST 31, SEPTEMBER 30, 1993 1994 1995 1996 1997 1997 1998 1998 --------- --------- --------- --------- --------- ------------- ----------- ------------- Earnings: Income (loss) before income taxes, accounting change and extraordinary item............. $ (16) $ (1,816) $ (2,368) $ (105) $ 8,598 $ 5,755 $ 6,081 $ (986) Minority interest in income of subsidiaries with fixed charges.... 13 8 85 193 112 81 48 6 Fixed charges...... 3,392 3,701 4,331 4,785 3,842 3,114 2,839 1,831 --------- --------- --------- --------- --------- ------------- ----------- ------------- $ 3,389 $ 1,893 $ 2,048 $ 4,873 $ 12,552 $ 8,950 $ 8,968 $ 851 --------- --------- --------- --------- --------- ------------- ----------- ------------- --------- --------- --------- --------- --------- ------------- ----------- ------------- Fixed charges: Interest expense, including amortization of debt discounts and issuance costs (none capitalized)..... $ 2,940 $ 3,244 $ 3,821 $ 4,248 $ 3,154 $ 2,598 $ 2,350 $ 1,765 Interest component of rentals (1)... 452 457 510 537 688 516 489 66 --------- --------- --------- --------- --------- ------------- ----------- ------------- $ 3,392 $ 3,701 $ 4,331 $ 4,785 $ 3,842 $ 3,114 $ 2,839 $ 1,831 --------- --------- --------- --------- --------- ------------- ----------- ------------- --------- --------- --------- --------- --------- ------------- ----------- ------------- Earnings to fixed charges ratio: Ratio............ -- -- -- 1.0x 3.3x 2.9x 3.2x -- Deficiency....... $ 3 $ 1,808 $ 2,283 $ -- $ -- $ -- $ -- $ 980 PRO FORMA: NINE MONTHS TWELVE MONTHS YEAR ENDED ENDED ENDED DECEMBER 31, SEPTEMBER 30, SEPTEMBER 30, 1997 1998 1998 ------------- -------------- -------------- Earnings: Income (loss) before income taxes, accounting change and extraordinary item............................... $ (13,174) $ 167 $ (1,321) Minority interest in income of subsidiaries with fixed charges.... 112 54 85 Fixed charges....................... 21,797 16,208 21,695 ------------- -------------- -------------- $ 8,735 $ 16,429 $ 20,459 ------------- -------------- -------------- ------------- -------------- -------------- Fixed charges: Interest expense, including amortization of debt discounts and issuance costs (none capitalized)....................... $ 21,037 $ 15,622 $ 20,865 Interest component of rentals (1)... 760 586 830 ------------- -------------- -------------- $ 21,797 $ 16,208 $ 21,695 ------------- -------------- -------------- ------------- -------------- -------------- Earnings to fixed charges ratio: Ratio............................. -- 1.0x -- Deficiency........................ $ 13,062 $ -- $ 1,236 - ------------------------------ (1) Reflects one-third of rental expense under operating leases considered to represent interest cost.