Avro 638
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| Club Cadet | |
|---|---|
| Type | Trainer |
| Manufacturer | Avro |
| Maiden flight | 1933 |
| Introduced | 1933 |
| Produced | 1933-1935 |
| Number built | 27 (17 · 638 + 1 · 639 + 9 · 640) |
| Developed from | Avro Cadet |
The Avro Club Cadet was a single engined British biplane trainer aircraft designed and built by Avro in the 1930s as a development of the earlier Avro Cadet. It was planned for private and club use, and, unlike the Cadet, was fitted with folding wings for ease of storage.
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[edit] Design and development
The Avro 638 Club Cadet was a version of the earlier Avro Cadet, again intended for private and club use. The staggered biplane wings of the Cadet prevented the wings from folding to save hanger space, which was a disadvantge for an aircraft planned for private use, so the Club Cadet was fitted with unstaggered folding wings. The first prototype flew in May 1933, powered by an Armstrong Siddeley Genet Major piston engine with only 16 others being built, production finishing in 1935[1].
A single prototype of an enclosed three-seat cabin version, the Avro 639 Cabin Cadet was built, flying in 1933 [2], but did not enter production. A second three-seat version, the Avro 640 Cadet, this time with a widened fuselage with an open cockpit for two passenders side by side in front of the pilot, was produced for joy-riding work. Nine of these were built, the first four powered by 140 hp Cirrus Hermes IV engines with the remaining five with Genet Major engines [1].
[edit] Operational history
While inteded for private as well as club use, the majority of the Club Cadets were used by flying schools, with the largest user being Airwork, which operated five Club Cadets. These were later re-engined with 130 hp de Havilland Gypsy Moth engines, reducing drag and improving fuel consumption [1].
[edit] Variants
- Avro 638 Club Cadet
- Two seat trainer aircraft, powered by 135 hp Genet Major or 130 hp Gypsy Moth engine, 17 built.
- Avro 639 Cabin Cadet
- Enclosed cockpit, 1 built.
- Avro 640 Cadet
- Three seat joyriding aircraft, powered by 140 hp Cirrus Hermes (first 4 aircraft) or 135 hp Genet Major engine, 9 built.
- Avro Club Cadet Special
- One aircraft was fitted with a 140-hp (104-kW) Cirrus Hermes IVA piston engine.
[edit] Operators
[edit] Specifications (Avro 638)
Data from Avro Aircraft since 1908 [1]
General characteristics
- Crew: Two
- Length: 24 ft 9 in (7.55 m)
- Wingspan: 30 ft 2 in (9.20 m)
- Height: 8 ft 9 in (2.67 m)
- Wing area: 262 ft² (24.3 m²)
- Empty weight: 1,244lb (565 kg)
- Loaded weight: 2,000 lb (909 kg)
- Powerplant: 1× Armstrong Siddeley Genet Major 1 seven cylinder radial, 135 hp (101 kW)
Performance
- Maximum speed: 100 knots (115 mph, 185 km/h)
- Cruise speed: 87 knots (100 mph, 161 km/h)
- Range: 283 nm (325 mi, 523 km)
- Service ceiling ft (m)
- Rate of climb: ft/min (m/s)
- Wing loading: 7.63 lb/ft² (37.4 kg/m²)
- Power/mass: 0.075 hp/lb (0.12 kW/kg)
[edit] References
- ^ a b c d Jackson, A J (1990). Avro Aircraft since 1908, 2nd edition, London: Putnam Aeronautical Books. ISBN 0-85177-834-8.
- ^ Jackson, A.J. (1974). British Civil Aircraft since 1919 Volume 1. London: Putnam. ISBN 0 370 10006 9.
[edit] External links
[edit] See also
Related development Avro Tutor - Avro Cadet
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