Grumman FF-2

The Grumman FF-2 was a fighter trainer biplane used by the US Navy before World War II. It was developed in the Naval Aircraft Factory, in Philadelphia, from the FF-1 and it shared similar characteristics. It was in service between 1936 and 1942. It was a light, maneuverable and safe trainer.

The modifications made to the FF-1 to obtain the FF-2 included the installation of dual flight controls, the removal of the tail hook and the addition of an engine exhaust collector ring to replace the individual exhaust stacks. The carburetor heat was also bled off the exhaust collector ring. Finally, an HF/RDF radio was installed as a five stranded loop antenna was set up between the upper and the lower starboard wings. Despite of the fact of being a trainer, it kept the three machine guns of its predecessor.

Specifications

Type: naval trainer

Length: 24 feet, 6 inches (7.47 m)

Wingspan: 34 feet, 6 inches (10.52 m)

Height: 11 feet, 1 inches (3.38 m)

Weight: 3,076 lb (1,395.2 kg)

Powerplant: one 750-HP, Wright R-1820 Cyclone radial engine.

Maximum Speed: 207 mph (333.1 km/h)

Below, the Grumman FF-2 at the Alleghany County Airport. It has the Navy/Marine reserve insignia.

Sideview drawing of the FF-2 indicating the addition of the exhaust collector ring and the removal of the tail hook.