The Boulton-Paul P.111 was delivered to the Royal Aircraft Establishment at Boscombe Down, and the aircraft first flew there in October 1950, in the following three years numerous test flights were made with all three types of wing tips. numerous problem design areas were identified, following an emergency belly landing the aircraft was extensively re-built to address the various problems that had been identified. The re-built and modified aircraft was re-designated the Boulton-Paul P.111A and painted in it's current yellow colour scheme. The Boulton-Paul P.111A was operated from July 1953 to 1958 at which point it was designated an instructional airframe and moved to the Cranfield College of Aeronautics. Boulton-Paul P.111 Specifications: - Crew: Pilot only
- Length: 26 ft 1 in (without nose probe) (7.95 m)
- Wingspan: 25 ft 8 in, 29 ft 9 in and 33 ft 6 in (with detachable wingtips) (7.82 m, 9.07 m and 10.21 m)
Height: 12 ft 6 in (3.81 m) - Wing area: 269 ft², 284 ft² and 290 ft² (with detachable wingtips) (25.01 m², 26.40 m² and 26.94 m²)
- Airfoil: t/c 10%
- Empty weight: 7,517 lb (3,410 kg)
- Loaded weight: 10,127 lb (4,595 kg)
- Engine: Single 5,100 lb st (22.69 kN) Rolls-Royce Nene R3N2 turbojet
- Maximum speed: 649 mph at sea level (1,045 km/h)
- Service ceiling: 35,000 ft (10,670 m)
- Rate of climb: 9,400 ft/min (48 m/s)
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