Exhibit 12.1
TRANSDIGM GROUP INCORPORATED
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Dollars in Thousands)
| Fiscal Years Ended September 30, | Twenty-Six Week Periods Ended | ||||||||||||||||||||
| 2009 | 2008 | 2007 | 2006 | 2005 | April. 3, 2010 | March. 28, 2009 | |||||||||||||||
Earnings: | |||||||||||||||||||||
Total earnings | $ | 162,902 | $ | 133,126 | $ | 88,645 | $ | 25,117 | $ | 34,687 | $ | 68,804 | $ | 79,903 | |||||||
Income tax provision | 88,100 | 73,476 | 53,426 | 16,318 | 22,627 | 38,780 | 44,137 | ||||||||||||||
Pre Tax Earnings | 251,002 | 206,602 | 142,071 | 41,435 | 57,314 | 107,584 | 124,040 | ||||||||||||||
Fixed charges: | |||||||||||||||||||||
Interest charges | 84,398 | 92,677 | 91,767 | 76,732 | 80,266 | 56,928 | 43,622 | ||||||||||||||
Interest factor of operating rents (1) | 1,095 | 1,052 | 931 | 698 | 635 | 632 | 517 | ||||||||||||||
Total fixed charges | 85,493 | 93,729 | 92,698 | 77,430 | 80,901 | 57,560 | 44,139 | ||||||||||||||
Earnings as adjusted | $ | 336,495 | $ | 300,331 | $ | 234,769 | $ | 118,865 | $ | 138,215 | $ | 165,144 | $ | 168,179 | |||||||
Ratio of earnings to fixed charges | 3.9 | 3.2 | 2.5 | 1.5 | 1.7 | 2.9 | 3.8 | ||||||||||||||
| (1) | For purposes of computing the ratio of earnings to fixed charges, earnings consist of earnings before income taxes plus fixed charges. Fixed charges consists of interest expense, amortization of debt issue costs and the portion of rental expense that management believes is representative of the interest component of rental expense. |