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Johns Multiplane
Type of aircraft From Wikipedia, the free encyclopedia
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The Johns Multiplane was a very large unsuccessful experimental aircraft having seven wings and six ailerons, powered by three Liberty L-12 V-12 aircraft engines. The machine had the appearance of a biplane spliced onto the front of a triplane with two wings added at the rear. The center fuselage housed the cockpit and one engine in tractor configuration. Both side booms ended with wing-mounted engines in pusher configuration. The aileron control force was found to be extremely high.
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Design and development
Designed by Herbert Johns of the American Multiplane Company in Bath, New York, Patent # 1,365,995 Flying Machine was granted to Charles A. Herrmann, also of the American Multiplane Company on Oct. 3, 1916.[1]
Operational history
The massive septi-wing made a series of short hops during testing, but was eventually scrapped in 1920[2] due to its inability to maintain controlled flight.
Specifications
General characteristics
- Crew: three
- Length: 55 ft 9 in (17 m)
- Wingspan: 106 ft 4 in (32.4 m)
- Powerplant: 3 × Liberty L-12 water-cooled 45° V-12 piston engine, 400 hp (300 kW) each
Performance
References
External links
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