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Страна: Великобритания

Год: 1916

Единственный экземпляр

Single pusher engine, two-seat, two-bay reconnaissance-bomber biplane with twin main-float undercarriage

C.Andrews, E.Morgan Supermarine Aircraft since 1914 (Putnam)

The A.D. Designs

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  The A.D.Navyplane was another initial Admiralty design by Harold Bolas given to Supermarine to complete detail design and construction. The machine, a single-engined pusher floatplane, was completed in eight weeks from the receipt of the master drawings, which led Murray Sueter, who in effect was the head of the Air Department, to send Supermarine a letter of commendation. The Navyplane was intended for reconnaissance and bombing duties but in fact never reached the production stage, bedevilled again by the failure of its intended engine, the American Smith static radial (brought to Britain in January 1915 by John W. Smith). The high hopes for the Smith engine were not realized, as happened at a later date with the ABC Dragonfly. Air-cooled radials proved difficult to design despite their advantages in the saving of space and weight.
  The Navyplane was a two-bay biplane with a high tailplane, to avoid the wash, and twin fins and rudders, and tail floats which were fitted with water rudders, all carried on four outriggers. It had a lightweight crew nacelle with a Lewis gun on a special mounting and carried W/T radio. A glazed nose which extended underneath to the pilot’s seat provided a good view forward and below, an essential feature for marine reconnaissance. The floats were of the pontoon type which, although much heavier than the sophisticated type designed by Linton Hope on his A.D.Boat principles, were more satisfactory in their operational use, the Linton Hope floats initially being hydrodynamically unstable.
  Two prototypes, 9095 and 9096, were ordered but only 9095 was built and tested with the Smith engine in August 1916, by Commander John Seddon. It was tested again in May 1917, with the Bentley-designed A.R.1 rotary engine but performance is reported to have been poor.
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A.D.Navyplane - One A.R.1 rotary. Pilot and observer.
   Span 36 ft (10-97 m); length 27 ft 9 in (8-45 m); height 12 ft 9 in (3-88 m); wing area 360 sq ft (33-44 sq m).
   Empty weight 2,100 lb (952 kg): loaded weight 3,102 lb (1.407 kg).
   Maximum speed 75 mph (120-7 km/h); alighting speed 36 mph (58 km/h); duration 6 hr.
   Armament. One Lewis machine-gun and a torpedo.

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Описание:

  • C.Andrews, E.Morgan Supermarine Aircraft since 1914 (Putnam)
  • F.Manson British Bomber Since 1914 (Putnam)
  • P.Lewis British Bomber since 1914 (Putnam)
  • J.Bruce British Aeroplanes 1914-1918 (Putnam)
  • H.King Armament of British Aircraft (Putnam)
  • Jane's All The World Aircraft 1919