EXHIBIT 12 LOCKHEED MARTIN CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE QUARTER ENDED MARCH 31, 1995 (IN MILLIONS OF DOLLARS, EXCEPT RATIO) EARNINGS: Net earnings $ 137 Taxes on income 96 Interest expense 79 Amortization of debt premium and discount, net (2) Portion of rents representative of an interest factor 14 Losses of less than 50% owned associated companies 1 ----- Adjusted earnings before taxes and fixed charges $ 325 ===== FIXED CHARGES: Interest expense $ 79 Amortization of debt premium and discount, net (2) Portion of rents representative of an interest factor 14 Capitalized interest 1 ----- Total fixed charges $ 92 ===== RATIO OF EARNINGS TO FIXED CHARGES 3.5 ===== 21 OF 22