Heinkel HD 43
The Heinkel Doppeldecker 43 was a prototype German fighter aircraft of the 1930s. A single-engined, single-seat biplane, the HD 43 was designed to meet a secret German Reichswehr requirement for a single-seat fighter. It had two-bay wooden wings with a steel-tube fuselage, and was powered by a 750 hp (600 kW) BMW VI engine. The single prototype flew in 1931.
It was evaluated against the Arado Ar 65, with the Arado being selected and no production of the Heinkel followed.
- Crew: 1
- Length: 7.1 m (23 ft 4 in)
- Wingspan: 10 m (32 ft 10 in)
- Height: 3.3 m (10 ft 10 in)
- Wing area: 26.56 m2 (285.9 sq ft)
- Empty weight: 1,280 kg (2,822 lb)
- Gross weight: 1,700 kg (3,748 lb)
- Powerplant: 1 × BMW VI 7.3 Z V-12 liquid-cooled piston engine, 559 kW (750 hp)
- Propellers: 2-bladed fixed-pitch propeller
- Maximum speed: 322 km/h (200 mph, 174 kn)
- Time to altitude: 3,000 m (9,843 ft) in 4 minutes 54 seconds
- Guns: provision for two machine guns
- Green and Swanborough 1994, p.294.
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- Green, William; Swanborough, Gordon (1994). The Complete Book of Fighters. London: Salamander. p. 294. ISBN 1-85833-777-1.