Johns Multiplane
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.
01Design 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.
02Operational history
The massive septi-wing made a series of short hops during testing, but was eventually scrapped in 1920 due to its inability to maintain controlled flight.
03Specifications
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
Sources and credits
This article is adapted from the Wikipedia article “Johns Multiplane”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Johns Multiplane on the ground. Port side circa 1919.jpg by Unknown author, Public domain
- Johns Multiplane flying circa 1919.jpg by Unknown authorUnknown author, Public domain
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