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Encyclopedia > Supermarine Nighthawk
Supermarine P.B.31E Nighthawk

The P.B.31E "Night Hawk", the first project of the Pemberton-Billing operation after it became Supermarine Aviation Works Ltd., was a prototype anti-Zeppelin fighter with a crew of three to five and an intended endurance of 9 to 18 hours. It was first flown by Clifford Prodger in February 1917. This is an article about Zeppelin airships. ...


It had six-bay swept quadriplane wings, the fuselage filled the gap between the second and third wings, and a biplane tailplane with twin fins and rudders. The cockpit was enclosed and heated. Hs123 biplane. ...


For armament, it had a trainable nose-mounted searchlight, a 2-pounder Davis gun mounted above the top wing with 20 shells, and 2 .303-inch Lewis guns. Edisons classical searchlight cart. ... M67 recoilless rifle. ... The Lewis Gun is a pre-World War I era squad automatic weapon/machine gun of American design that was most widely used by the forces of the British Empire. ...


It was advertised as being able to reach 75 mph, but the prototype only managed 60 mph at 6500 ft and took an hour to climb to 10,000 ft (which was totally inadequate for intercepting Zeppelins). Given the Anzani's reputation for unreliability and overheating, it is unlikely that the airplane would have delivered the advertised endurance either. The Anzani was an Italian automobile manufactured from 1923 to 1924 by a company, founded by Alessandro Anzani. ...

Contents

Specifications (Prototype)

Data from The British Fighter since 1912[1]

General characteristics

  • Crew: Five (2 pilots, 3 gunners)
  • Length: 37 ft (11.4 m)
  • Wingspan: 60 ft (18.5 m)
  • Height: 17 ft 8.5 in (5.5 m)
  • Wing area: 962 ft² (89.4 m²)
  • Empty weight: 3,677 lb (1,672 kg)
  • Loaded weight: 6,146 lb (2,795 kg)
  • Powerplant: 2× Anzani 9 cylinder radial engine with four blade propellers, 100 hp (75 kW) each

Performance

  • Maximum speed: 65 knots (75 mph, 121 km/h)
  • Time to 10,000 ft (3,050 m): 60 min
  • Endurance: 9 - 18 hours

Armament

One 2 pdr Davis gun and one Lewis gun above upper wing, and one Lewis gun in the nose The distance AB is the wing span of this Aer Lingus Airbus A320. ... The radial engine is an internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel. ... VNO of an aircraft is the V speed which refers to the velocity of normal operation. ...

References

  1. ^ Mason, Francis K (1992). The British Fighter since 1912. Naval Institite Press. ISBN ISBN 1-55750-082-7. 

External links

  • British Aircraft Directory

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