Exhibit 12

Lockheed Martin Corporation

Computation of Ratio of Earnings to Fixed Charges

For the Nine Months Ended September 27, 2009

(In millions, except ratio)
Earnings
Earnings before income taxes	$	3,104
Interest expense		219
Losses (undistributed earnings) of 50% and less than 50% owned companies, net		(69	)
Portion of rents representative of an interest factor		34
Amortization of debt premium and discount, net		(3	)
Adjusted earnings before income taxes	$	3,285
Fixed Charges
Interest expense	$	219
Portion of rents representative of an interest factor		34
Amortization of debt premium and discount, net		(3	)
Capitalized interest		—
Total fixed charges	$	250
Ratio of Earnings to Fixed Charges		13.1