Exhibit 12

Lockheed Martin Corporation

Computation of Ratio of Earnings to Fixed Charges

For the Three Months Ended March 28, 2010

(In millions, except ratio)

Earnings
Earnings before income taxes	$	922
Interest expense		88
Losses (undistributed earnings) of 50% and less than 50% owned companies, net		(21	)
Portion of rents representative of an interest factor		15
Amortization of debt premium and discount, net		(1	)
Adjusted earnings from continuing operations before income taxes	$	1,003
Fixed Charges
Interest expense	$	88
Portion of rents representative of an interest factor		15
Amortization of debt premium and discount, net		(1	)
Capitalized interest		—
Total fixed charges	$	102
Ratio of Earnings to Fixed Charges		9.8