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MARTIN B-12A


All Data and Pictures from USAF Museum

    SPECIFICATIONS              PERFORMANCE                         ARMAMENT/REMARKS

 Span: 70 ft. 6 in. Maximum speed: 212 mph Three .30-cal. machine guns
Length: 44 ft. 9 in. Cruising speed: 165 mph 2,260 lbs. of bombs
Height: 15 ft. 5 in. Service ceiling: 24,200 ft. 2 Pratt & Whitney R-1690-11 Hornet radials 700 hp. Each
Weight: 12,980 lbs. gross Range: 1240 miles with bomb load 1,830 miles ferry range

The Martin B-12A was the production version of the YB-12. The -A model had an extra fuel tank (365 gal.) installed to increase range reducing the top speed by a few miles per hour.  Only 25 were made.
Serial Numbers: 33-163 to 33-177 and 33-258 to 33-267

In January 1931, the US Army took over the responsibility for coastal defense as a result of the MacArthur-Pratt agreement. This would allow the US Navy to take on a greater role in long-range sea offensive operations. The Navy, like the Army, was very limited in size in the 1920s and early 1930s. With the acquisition of coastal defense duties, the Army converted some B-10 and B-12 aircraft to float planes. Additional Images Follow






All Data and Pictures from USAF Museum

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