Exhibit 12.1
TRANSDIGM GROUP INCORPORATED
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Dollars in Thousands)
| Fiscal Years Ended September 30, | Thirteen Week Period Ended | |||||||||||||||||||||||||||
| 2012 | 2011 | 2010 | 2009 | 2008 | Dec 29 2012 | Dec 31 2011 | ||||||||||||||||||||||
Earnings: | ||||||||||||||||||||||||||||
Total earnings | 324,969 | 152,225 | 163,445 | 162,902 | 133,126 | 74,170 | 65,105 | |||||||||||||||||||||
Income tax provision | 162,900 | 77,200 | 87,390 | 88,100 | 73,476 | 35,800 | 31,100 | |||||||||||||||||||||
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Pre Tax Earnings | 487,869 | 229,425 | 250,835 | 251,002 | 206,602 | 109,970 | 96,205 | |||||||||||||||||||||
Fixed charges: | ||||||||||||||||||||||||||||
Interest charges | 211,906 | 185,256 | 112,234 | 84,398 | 92,677 | 62,876 | 49,061 | |||||||||||||||||||||
Interest factor of operating rents | 2,602 | 1,959 | 1,398 | 1,095 | 1,052 | 713 | 539 | |||||||||||||||||||||
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Total fixed charges | 214,508 | 187,215 | 113,632 | 85,493 | 93,729 | 63,589 | 49,600 | |||||||||||||||||||||
Earnings as adjusted | 702,377 | 416,640 | 364,467 | 336,495 | 300,331 | 173,559 | 145,805 | |||||||||||||||||||||
Ratio of earnings to fixed charges | 3.3 | 2.2 | 3.2 | 3.9 | 3.2 | 2.7 | 2.9 | |||||||||||||||||||||
| (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 (approximately 33%) of rental expense that management believes is representative of the interest component of rental expense. |