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Страна: Великобритания

Год: 1917

Истребитель

A.Jackson Avro Aircraft since 1908 (Putnam)

Avro 530

  The Avro 530, first flown in July 1917, was a two-seat fighter which failed to secure a production contract in the face of competition from the celebrated Bristol Fighter because of non-availability of engines. The 300 hp water-cooled Hispano-Suiza was not obtainable when required and the machine flew with a 200 hp Hispano-Suiza. Even on the lower power the performance of the Avro 530 rivalled that of the Bristol and it might still have become one of the famous fighters of the First World War had not almost all 200 hp Hispano-Suiza engines been reserved for the S.E.5A.
  Built at Manchester and erected and flown at Hamble, the Avro 530 was an unusually clean two-bay biplane. Its deep fuselage was of wire-braced, box-girder construction with the fabric covering stretched over formers to give a more streamlined shape. The engine mounting consisted of strutted duralumin girders. The pilot occupied the front cockpit with a single Vickers gun mounted in a large plywood fairing on top of the fuselage ahead of him. This fairing obstructed the pilot’s forward view and the machine was later rebuilt with new top decking and much smaller fairing. In this form the top wing was on a level with the pilot’s eyes, ensuring adequate view in all upward and forward directions while a rear gunner armed with a single Lewis gun on a Scarff mounting commanded the downward and rearward view.
  The fabric-covered, wooden mainplanes were of RAF 14 section and engine cooling was by a large frontal radiator. Though the aircraft was initially flown without it, the lines of the short, blunt nose were later improved by fitting a hollow, open-fronted metal spinner. The famous Avro skid-type undercarriage gave place to a new unit comprising two narrow Vs, braced by an internal V-strut, later faired with metal sheeting to reduce drag. Landing speed was reduced by trailing-edge flaps actuated by a handwheel in the pilot’s cockpit. They were fitted to both upper and lower mainplanes between the inboard ends of the ailerons and the fuselage. Trials proved that the original small fin and rudder were inadequate and a number of different tail units were tested before the final balanced rudder arrangement was adopted.
  In an attempt to solve the engine supply problem, the second prototype Avro 530 was completed with a 200 hp Sunbeam Arab engine. An unfaired, wide angle V undercarriage was fitted; there was no spinner; the tail fin was larger and more gracefully curved; and new RAF 15 section mainplanes were fitted. These were without flaps but had long-span ailerons and metal cuffs to fair the ends of the interplane struts into the wing.
In view of its deep and capacious fuselage, the Avro 530 was offered in 1920 as a high-speed touring aeroplane with comfortable tandem cockpits above a large baggage compartment. There is no evidence that this modification took place and the machine did not receive a civil registration.


SPECIFICATION AND DATA
   Manufacturers: A. V. Roe and Co. Ltd., Clifton Street, Miles Platting, Manchester; and Hamble Aerodrome, near Southampton, Hants.
   Power Plants
   One 200 h.p. Hispano-Suiza (first prototype)
   One 200 h.p. Sunbeam Arab (second prototype)
   Dimensions:
   Span 36 ft. 0 in. Length 28 ft. 6 in.
   Height 9 ft. 7 in. Wing area 325 1/2 sq. ft.
   Weights:
   Tare weight 1,695 lb. (1,760 lb.)
   All-up weight 2,680 lb. (2,500 lb.)
   Performance:
   Maximum speed 114 m.p.h. (118 m.p.h.)
   Cruising speed 95 m.p.h. (102 m.p.h.)
   Climb to 5,000 ft. 6 min. 30 sec. (5 min. 30 sec.)
   Ceiling 18,000 ft. Endurance 4 hours
   Production:
   Two prototypes only; Contract A.S.425/17 let on 15.5.17 and serials B3952 and B3953 were allocated. Two further serials, B9431 and B9432, were allocated against the same contract on 26.7.17. As no identity appeared on either machine, which if any serials were actually used is not known.

   Note - Estimated figures for proposed civil version in parentheses.

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Описание:

  • A.Jackson Avro Aircraft since 1908 (Putnam)
  • P.Lewis The British Fighter since 1912 (Putnam)
  • F.Mason The British Fighter since 1912 (Putnam)
  • W.Green, G.Swanborough The Complete Book of Fighters
  • J.Bruce British Aeroplanes 1914-1918 (Putnam)
  • H.King Armament of British Aircraft (Putnam)
  • Jane's All The World Aircraft 1919
  • Журнал Flight