Armstrong Whitworth A.W.52
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| A.W.52 | |
|---|---|
| Type | Experimental aircraft |
| Manufacturer | Armstrong Whitworth Aircraft |
| Designed by | John Lloyd |
| Maiden flight | 13 November 1947 |
| Primary user | Royal Aircraft Establishment |
| Number built | 2 |
The Armstrong Whitworth A.W.52 was a British flying wing aircraft design of the late 1940s.
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Armstrong Whitworth Aircraft proposed a jet-powered four-engine flying wing bomber design, utilitising a laminar flow wing, during the Second World War. The design was tested on a third-scale glider known as the A.W.52G, but the war ended and the project was dropped.
However, Armstrong Whitworth then received a contract that would allow them to produce two prototypes for evaluation, nominally for a mail carrying aircraft. The first prototype flew on 13 November 1947 powered by two Rolls Royce Nene engines. This was followed by the second prototype on 1 September 1948 with the Rolls Royce Derwent. The first prototype crashed without loss of life in May 1949, making it the first occasion of an emergency ejection by a British pilot, but the second prototype remained flying with the Royal Aircraft Establishment until 1954.
On 30 May 1949, test pilot Jo Lancaster encountered a pitch oscillation while diving at 320 mph, believed to be a result of elevon flutter. Starting at two cycles per second, it rapidly increased to incapacitating levels. With structural failure seemingly imminent, Lancaster bailed out of the aircraft using its Martin-Baker Type 1 ejection seat, becoming the first British pilot to use the apparatus in a "live" emergency.[1]
General characteristics
- Crew: 2
- Length: 37 ft 4 in (11.4 m)
- Wingspan: 90 ft (27.4 m)
- Height: 14 ft 4 in (4.4 m)
- Empty weight: 19,662 lb (8,918.5 kg)
- Loaded weight: 34,154 lb (15,491.9 kg)
- Powerplant: 2× Rolls Royce Nene Turbojet, 5,000 lbf (22.2 kN) each
Performance
- Maximum speed: 500 mph (804.7 kph)
- Range: 980 miles (1,577 km)
- Service ceiling: 36,000 ft ()
- ^ Lancaster, Jo (October 2006). "Setting the Record Straight". Aeroplane 34 (10): pp. 42-46.
Comparable aircraft
- Northrop XP-79
Designation sequence
A.W.27 - A.W.38 - A.W.41 - A.W.52 - A.W.55
Related lists
See also
Timeline of aviation
Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines
Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft
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