Exhibit 12.1 ESTERLINE TECHNOLOGIES CORPORATION (In thousands) Statement of Computation of Ratio of Earnings to Fixed Charges 2004 2003 2002 2001 2000 --------- --------- --------- --------- --------- (Restated) (Restated) (Restated) (Restated) (Restated) Income from continuing operations before income taxes $40,395 $41,363 $37,034 $73,452 $ 36,408 Fixed charges (1) Interest expense 17,339 11,995 7,122 7,663 8,124 Amortization of debt issuance cost 56 703 167 178 116 Interest included in rental expense 2,894 2,398 2,164 2,035 1,957 --------------------------------------------------------------------- Total 20,289 15,096 9,453 9,876 10,197 Earnings (2) $60,684 $56,459 $46,487 $83,328 $ 46,605 Ratio of earnings available to cover fixed charges 3.0 3.7 4.9 8.4 4.6 (1) Fixed charges consist of interest on indebtedness and amortization of debt issuance cost plus that portion of lease rental expense representative of the interest factor. (2) Earnings consist of income from continuing operations before income taxes plus fixed charges.