EXHIBIT 12
L-3 COMMUNICATIONS HOLDINGS, INC.
AND L-3 COMMUNICATIONS CORPORATION
RATIO OF EARNINGS TO FIXED CHARGES
L-3 PREDECESSOR
---------------------------------------------------------------------------------------- COMPANY
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THREE MONTHS NINE MONTHS THREE MONTHS
ENDED ENDED ENDED
MARCH 31, YEAR ENDED DECEMBER 31, DECEMBER 31, MARCH 31,
2002 2001 2000 1999 1998 1997 1997
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Earnings:
Income before income taxes $ 45,253 $ 186,222 $ 134,079 $ 95,430 $ 53,450 $ 22,992 $ (505)
Add:
Interest expense ........ 24,346 80,002 87,308 56,686 47,015 29,884 8,441
Amortization of debt
expense ............... 1,747 6,388 5,724 3,904 2,564 1,517 --
Interest component of
rent expense .......... 3,950 14,332 11,882 7,500 4,664 3,213 851
-------- --------- --------- --------- --------- -------- --------
Earnings .................. $ 75,296 $ 286,944 $ 238,993 $ 163,520 $ 107,693 $ 57,606 $ 8,787
-------- --------- --------- --------- --------- -------- --------
Fixed charges:
Interest expense ........ 24,346 80,002 87,308 56,686 47,015 29,884 8,441
Amortization of debt
expense................ 1,747 6,388 5,724 3,904 2,564 1,517 --
Interest component of
rent expense .......... 3,950 14,332 11,882 7,500 4,664 3,213 851
-------- --------- --------- --------- --------- -------- --------
Fixed charges ............. $ 30,043 $ 100,722 $ 104,914 $ 68,090 $ 54,243 $ 34,614 $ 9,292
-------- --------- --------- --------- --------- -------- --------
Ratio of earnings to fixed
charges .................. 2.5x 2.8x 2.3x 2.4x 2.0x 1.7x n.a.(a)
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(a) For the three months ended March 31, 1997, earnings were
insufficient to cover fixed charges by $.5 million.