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The Goupy No.1 was an experimental aircraft built in France in 1908, which on 5 September that year became the first triplane to fly. Designed by Ambroise Goupy and built by Voisin, it was a conventional, tractor design with fixed tailwheel undercarriage and an open cockpit. The only unorthodox aspects of the design were its triplane tail unit, and the way that the interplane struts of both the wings and empennage were covered with fabric to create box kite-like cellules. As originally constructed, the middle wing was mounted in a mid-wing position on the fuselage, with the top and bottom wings clear of the fuselage, and power was provided by an Antoinette engine. The design was later revised so that the bottom wing was mounted at the base of the fuselage, the middle wing to the top of the fuselage, and top wings clear of it. At the same time, the engine was changed to an Anzani of similar power and the span of the wings was increased past the interplane struts.
[edit] Specifications
General characteristics
- Crew: One pilot
- Length: 9.80 m (32 ft 2 in)
- Wingspan: 7.50 m (24 ft 7 in)
- Wing area: 44.0 m² (474 ft²)
- Gross weight: 476 kg (1,050 lb)
- Powerplant: 1 × Anzani, 37 kW (50 hp)
Performance
- Maximum speed: 54 km/h (33 mph)
[edit] References
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions, 429.
- "The Goupy Triplane" (3 January 1909). Flight: 65.
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Aircraft designed by Ambroise Goupy |
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No.1 • No.2 • No.3
Type Militaire • Hydroaeroplane
Type A • Type B
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