EXHIBIT 12.1 DECRANE AIRCRAFT HOLDINGS, INC. AND SUBSIDIARIES EARNINGS TO FIXED CHARGES RATIO (DOLLARS IN THOUSANDS) (PREDECESSOR) (SUCCESSOR) (PRO FORMA) --------------------------------------------------------- ------------- ------------- EIGHT MONTHS FOUR MONTHS TWELVE MONTHS YEAR ENDED DECEMBER 31, ENDED ENDED ENDED ------------------------------------------ AUGUST 31, DECEMBER 31, DECEMBER 31, 1994 1995 1996 1997 1998 1998 1998 --------- --------- --------- --------- ------------- ------------- ------------- Earnings: Income (loss) before income taxes, accounting change and extraordinary item............. $ (1,816) $ (2,368) $ (105) $ 8,598 $ 6,081 $ (2,992) $ (3,213) Minority interest in income of subsidiaries with fixed charges........................ 8 85 193 112 48 82 130 Fixed charges.................... 3,701 4,331 4,785 3,842 3,117 7,217 25,547 --------- --------- --------- --------- ------------- ------------- ------------- $ 1,893 $ 2,048 $ 4,873 $ 12,552 $ 9,246 $ 4,307 $ 22,464 --------- --------- --------- --------- ------------- ------------- ------------- --------- --------- --------- --------- ------------- ------------- ------------- Fixed charges: Interest expense, including amortization of debt discounts and issuance costs (none capitalized)................... $ 3,244 $ 3,821 $ 4,248 $ 3,154 $ 2,350 $ 6,852 $ 24,236 Interest component of rentals (1)............................ 457 510 537 688 767 365 1,311 --------- --------- --------- --------- ------------- ------------- ------------- $ 3,701 $ 4,331 $ 4,785 $ 3,842 $ 3,117 $ 7,217 $ 25,547 --------- --------- --------- --------- ------------- ------------- ------------- --------- --------- --------- --------- ------------- ------------- ------------- Earnings to fixed charges ratio: Ratio.......................... -- -- 1.0x 3.3x 3.0x -- -- Deficiency..................... $ 1,808 $ 2,283 $ -- $ -- $ -- $ 2,910 $ 3,083 - ------------------------------ (1) Reflects one-third of rental expense under operating leases considered to represent interest cost.