Fouga CM.88 Gemeaux
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The Fouga CM.88 Gemeaux was a 1950s French engine test-bed aircraft produced by Fouga. An unusual aircraft as it was two aircraft joined by a common wing.
Design and development
To meet a requirement to use as an engined testbed for Turbomeca turbojets, Fouga combined two CM.8 fuselages. It used the port and starboard outerwings with a new wing centre section to join the two fuselages. The V-tails fitted to each fuselage were joined at the top in a W configuration. The type was designated the Fouga CM.88-R Gemeaux I and first flew 6 March 1951, it was fitted with two Turbomeca Piméné turbojets, one on top of each fuselage. Further variants were produced as the engine fit was changed.
Variants
- Gemeaux I
- Original configuration with two 220 lb (100 kg) Turboméca Piméné turbojet engines, first flown 6 March 1951.
- Gemeaux II
- Designation when powered by one 606 lb (275 kg) Turboméca Marboré I turbojet engine, first flown 16 June 1951.
- Gemeaux III
- Designation when powered by one prototype 772 lb (350 kg) thrust Turboméca Marboré II turbojet engine and first flown on 24 August 1951. A production version of the engine with 882 lb (400 kg) thrust was flown on 2 January 1952.
- Gemeaux IV
- Designation when powered by one 441 lb (200 kg) thrust Turboméca Aspin I turbofan engine, first flown on 6 November 1951.
- Gemeuax V
- Final designation when powered by one 794 lb (360 kg) thrust Turboméca Aspin II turbofan engine, first flown on 21 June 1952.
Specifications (Gemeaux III)
General characteristics
- Length: 21 ft 10½ in (6.66 m)
- Wingspan: 35 ft 3½ in (10.76 m)
- Height: 6 ft 4 in (1.93 m)
- Wing area: 137.78 ft² (12.80 m²)
- Empty weight: 1,962 lb (890 kg)
- Max. takeoff weight: 2,579 lb (1170 kg)
- Powerplant: 1 × Turbomeca Marboré II turbojet, 882 lb (400 kg)
Performance
- Maximum speed: 249 mph (400 km/h)
- Service ceiling: 32,810 ft (10000 m)
See also
- Related lists
References
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Wikimedia Commons has media related to Air Fouga. |
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
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