Grumman F3F
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The Grumman F3F was the last biplane fighter aircraft delivered to the U.S. Navy. It was a single-place aircraft, powered by a radial engine.
The F3F-1 was powered by a Pratt & Whitney R-1535 Twin Wasp Junior engine and began Fleet service in 1937. The F3F-2 and F3F-3 were powered by Wright R-1820 Cyclone 9 engines and began service in 1938.
Specifications (F3F-3)
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