Exhibit 12

Lockheed Martin Corporation

Computation of Ratio of Earnings to Fixed Charges

For the Nine Months Ended September 30, 2007

(In millions, except ratio)

Earnings
Earnings before income taxes	$	3,186
Interest expense		265
Losses (undistributed earnings) of 50% and less than 50% owned companies, net		(21	)
Portion of rents representative of an interest factor		45
Amortization of debt premium and discount, net		(4	)
Adjusted earnings from continuing operations before income taxes	$	3,471
Fixed Charges
Interest expense	$	265
Portion of rents representative of an interest factor		45
Amortization of debt premium and discount, net		(4	)
Capitalized interest		—
Total fixed charges	$	306
Ratio of Earnings to Fixed Charges		11.3