Boulton & Paul P. 64
Boulton & Paul P. 64 | |
---|---|
Type: | Mail plane |
Design country: | |
Manufacturer: | |
First flight: |
March 23, 1933 |
Number of pieces: |
1 |
The Boulton & Paul P.64 Mailplane ("mail plane"), also known as the mail carrier ("mail carrier "), was a twin-engine biplane made by the British manufacturer Boulton & Paul Ltd in the 1930s. The all-metal aircraft was commissioned by Imperial Airways . Only the prototype was built.
history
Boulton & Paul developed the aircraft according to the specifications of the Air Ministry . What was required was a fast mail plane that could carry up to a thousand pounds (454 kg) of air freight over a thousand miles (1,609 km).
The P.64 made its maiden flight on March 23, 1933. However, the aircraft turned out to be too expensive and showed unsatisfactory characteristics. On October 21, 1933, the prototype crashed during a test flight.
Boulton & Paul then developed a lighter version with a slimmer, stretched hull, the Boulton & Paul P.71A .
construction
The crew consisted of two pilots and a navigator. Two radial engines, Bristol Pegasus I Mk.2 , each with 415 kW power, attached to the upper wings, served as propulsion . The fuselage arranged between the wings had a rectangular cross-section. The aircraft had a structure made of steel and duralumin and covered with fabric, as well as a rigid tail landing gear.
Technical specifications
Parameter | Data |
---|---|
crew | 3 |
length | 12.95 m |
span | 16.46 m |
height | 3.96 m |
Wing area | 70.2 m² |
Empty mass | 3180 kg |
Takeoff mass | 4760 kg |
Top speed | 275 km / h |
Service ceiling | 6860 m |
Range | 2010 km |
Engines | two 9-cylinder radial engines Bristol Pegasus I Mk.2 with 415 kW each |
See also
literature
- John Stroud: Wings of Peace, Boulton & Paul P. 64 and P. 71A. Airplane Monthly, Aug 1986, pp. 433-436.
Web links
- British Aircraft Directory (English) ( Memento of 30 September 2007 at the Internet Archive )
- Image and information on aviastar.org (English)