Standard H-2

H-2
Standard H-3
Role	Trainer
National origin	United States
Manufacturer	Standard Aircraft Corporation

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 (PMBRA) in 1917, powered by 150 hp (110 kW) engines. They were used as trainers between May 1917 and March 1918, although they were considered dangerous.^[1]

Operators[]

 Japan

• Imperial Japanese Navy Air Service

 United States

• United States Army
• United States Navy

Specifications (H-3)[]

H-4H seaplane

Data from Course in Aerodynamics and Airplane Design: Part II–Section 1^[2]

General characteristics

• Crew: 2
• Length: 27 ft 0 in (8.23 m)
• Wingspan: 40 ft 1 in (12.22 m)
• Wing area: 532 sq ft (49.4 m²)
• Empty weight: 2,500 lb (1,134 kg)
• Gross weight: 3,300 lb (1,497 kg)
• Fuel capacity: 68 US gal (57 imp gal; 260 L)
• Powerplant: 1 × straight-6, 135 hp (101 kW)

Performance

• Maximum speed: 84 mph (135 km/h, 73 kn)
• Stall speed: 46 mph (74 km/h, 40 kn)
• Endurance: 6 hr
• Time to altitude: 10 minutes to 3,400 ft (1,000 m)

References[]

Notes

Wikimedia Commons has media related to Standard H-2.

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. ISBN 0-85177-840-2.