The Grumman F3F was the last bi-winged fighter aircraft delivered to the U. S. Navy. The aircraft was built by the Grumman Aircraft Engineering Company of Bethpage, New York. It was a single place aircraft, powered by a radial engine. The Grumman Aircraft Engineering Corporation, later Grumman Aerospace Corporation, was a leading producer of military and civilian aircraft of the 20th century. ...
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. The Pratt & Whitney R-1535 Twin Wasp Junior was an engine used in American aircraft in the 1930s. ... 1937 was a common year starting on Friday (link will take you to calendar). ... The Wright R-1820 Cyclone 9 was an engine widely used in American aircraft in the 1930s and 1940s. ... 1938 was a common year starting on Saturday (link will take you to calendar). ...