Grumman F3F "Flying Barrel" at the Planes of Fame Air Show,Chino CA.
The Grumman F3F was the last American biplane fighter aircraft delivered to the United States Navy, and served between the wars. Designed as an improvement on the single-seat F2F, it entered service in 1936. It was retired from front line squadrons at the end of 1941 before it could serve in World War II, and was first replaced by the Brewster F2A Buffalo. The F3F which inherited the landing gear configuration first used on the Grumman FF served as the basis for a biplane design ultimately developed into the much more successful F4F Wildcat. When it entered combat, the Wildcat would quickly replace the Buffalo as the primary fighter of the Navy and Marines in the first part of World War II, and continue to be produced throughout the conflict.
Canadian Aviation Blog