Boulton Paul Mailplane
From Wikipedia, the free encyclopedia
| P.64 Mailplane | |
|---|---|
| Type | Mailplane/Light Transport |
| Manufacturer | Boulton & Paul Ltd |
| Designed by | J D North |
| Maiden flight | March 1933 |
| Retired | October 1933 |
| Status | Destroyed |
| Number built | 1 |
The Boulton & Paul P.64 Mailplane was a 1930s British twin-engined all-metal biplane transport aircraft designed for Imperial Airways and built by Boulton & Paul Ltd.
Contents |
[edit] Development
The airline had a requirement, which was translated into Air Ministry specification 21/28, for a mailplane to carry a 1,000 lb (454 kg) payload on a 1,000 mile (1609 km) leg at a reasonable speed. Boulton & Paul designed and constructed the prototype P.64 Mailplane to address these requirements. The aircraft (registered G-ABYK) first flew in March 1933 at Norwich. It was not a success, deemed to be expensive and unsatisfactory. It was destroyed during trials at Martlesham Heath when it struck the ground during an unexplained dive on 21 October 1933.
The company then addressed the specification's requirements with a new design transport aircraft which was lighter, slimmer and longer (the Boulton Paul P.71A).
[edit] Specifications
General characteristics
- Crew: 3 (2 pilots plus navigator or radio operator)
- Length: 42 ft 6 in (12.95 m)
- Wingspan: 54 ft 0 in (16.46 m)
- Height: 13 ft 0 in (3.96 m)
- Wing area: 756 sq ft ()
- Empty weight: 7,008 lb (3,180 kg)
- Max takeoff weight: 10,500 lb (4,760 kg)
- Powerplant: 2× Bristol Pegasus I.M2 radial engine, 555 hp (415 kW) each
Performance
- Maximum speed: 150 knots (172 mph, 275 km/h)
- Range: 1,250 mi (2,010 km)
- Service ceiling 22,500 ft ()
[edit] References
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
- Jackson, A.J. (1974). British Civil Aircraft since 1919. London: Putnam. ISBN 0 370 10014 X.
[edit] External links
[edit] See also
Related development Boulton Paul P.71A
|
||||||||
|
||||||||||||||
This aircraft article is missing some (or all) of its specifications. If you have a source, you can help Wikipedia by adding them.
