/ Hawker P.V.4
The Hawker P.V.4 was a 1930s British biplane aircraft built by Hawker Aircraft in competition for a government order for a general-purpose military aircraft.
The P.V.4 was first flown from the Brooklands airfield on 6 December 1934.
The Bristol Pegasus III engine was initially used, but this was changed to the Pegasus X in 1935.
In trials, it proved to be the only one of the competitors to be fully suitable for dive-bombing; unfortunately, because of its cross-axle undercarriage, it could not carry a torpedo.
29 ft 10 in (9.09 m)
40 ft 0 in (12.19 m)
11 ft 10 in (3.61 m)
348 sq ft (32.3 m2)
3,728 lb (1,691 kg)
6,650 lb (3,016 kg)
1 × Bristol Pegasus X nine-cylinder air-cooled radial engine, 690 hp (510 kW)
2-bladed Watts wooden propeller
183 mph (295 km/h, 159 kn) at 6,600 ft (2,000 m)
460 mi (740 km, 400 nmi)
23,700 ft (7,200 m)
Time to altitude
6 min 45 s to 10,000 ft (3,000 m)
1 x Vickers machine gun installed in the nose.
1 x Lewis gun mounted in the rear cockpit.
500 lb (230 kg) of bombs.
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