Leach International S-4 Registration of securities issued in business combination transactions

Exhibit 12.1

ESTERLINE TECHNOLOGIES CORPORATION

Statement of Computation of Ratio of Earnings to Fixed Charges

	Six Months Ended April 27, 2007		2006		2005		2004		2003		2002
	(in thousands)
Income from continuing operations before income taxes	$	39,499	$	73,196	$	67,670	$	38,989	$	40,605	$	37,588
Fixed charges (1)
Interest expense		14,252		21,290		18,159		17,336		11,991		7,117
Amortization of debt issuance cost		0		172		56		56		703		167
Interest included in rental expense		2,016		3,505		3,137		2,894		2,398		2,164
Total		16,268		24,967		21,352		20,286		15,092		9,448
Earnings (2)	$	55,767	$	98,163	$	89,022	$	59,275	$	55,697	$	47,036
Ratio of earnings available to cover fixed charges		3.4		3.9		4.2		2.9		3.7		5.0

(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.