Grumman XSBF

The Grumman XSBF, company designation G-14, was an American biplane scout bomber developed by Grumman for the United States Navy in the 1930s, derived from the Fifi fighter at a time when the biplane was giving way to the monoplane. After a Navy specification of late 1934, one prototype was ordered in March 1935. The XSBF-1 was a two-seat biplane with an enclosed cockpit, an all-metal fuselage and a 650 horsepower Pratt and Whitney Twin Wasp Junior radial engine, and it first flew on 24 December 1935. In the Navy evaluation the Curtiss SBC Helldiver proved superior and was ordered instead. The sole prototype then served as a liaison aircraft and in NACA research at Langley before it was damaged in a 1939 accident and struck off the Navy inventory.