The Standard H-2 was an early American Army reconnaissance aircraft, ordered in 1916. The H-2 was built by the Standard Aircraft Corporation, and previously known as the Sloane H-2. It was an open-cockpit three-place tractor biplane, powered by a 125 hp (90 kW) Hall-Scott A-5 engine. Only three were built.
An improved version, the H-3, with the same engine, earned an order for nine aircraft, while the Navy ordered three with floats as the H-4H.
Two Standard H-3s were sold by the US Army to Japan, where a further three were built by the Provisional Military Balloon Research Association (PMBRA) in 1917, powered by Hall-Scott L-4 engines. They were used as trainers between May 1917 and March 1918, although they were considered dangerous.Mikesh and Abe 1990, p. 55.
Operators
Imperial Japanese Navy Air Service
United States Army United States Navy
Specifications (H-3)
References Notes
Bibliography Klemin, Alexander and T. H. Huff. "Course in Aerodynamics and Airplane Design: Part II–Section 1". Aviation, Volume II, No. 2, 15 February 1917, pp. 91–92. (Registration required). Donald, David, ed. Encyclopedia of World Aircraft, p. 854, "Standard aircraft". Etobicoke, Ontario: Prospero Books, 1997. Mikesh, Robert C. and Shorzoe Abe. Japanese Aircraft, 1910-1941. London: Putnam, 1990. .