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Armstrong Whitworth F.K.6 / F.K.12

Страна: Великобритания

Год: 1916

Истребитель

Armstrong Whitworth - F.K.10 - 1916 - Великобритания<– –>Armstrong Whitworth - F.K.8 - 1916 - Великобритания


O.Tapper Armstrong Whitworth Aircraft since 1913 (Putnam)


In 1915, Frederick Koolhoven, the chief designer of Sir W G Armstrong Whitworth & Co Ltd, initiated work on a highly unorthodox three-seat triplane powered by a 250 hp Rolls-Royce 12-cylinder liquid-cooled engine and intended to accommodate two gunners each with a 0-303-in (7,7-mm) machine gun in shallow nacelles mounted above the centre wing on each side of the fuselage, the gunners being seated ahead of the airscrew plane of the tractor engine. Although a prototype was completed and allegedly designated F.K.5, this was never flown, and the design was extensively revised early in 1916 to meet an RFC requirement for an airship interceptor and long-range escort fighter. The revised design is believed to have been designated F.K.6 (and certainly not F.K.12 as has often been previously published) and four examples were ordered, two of these being intended for the RNAS. In the event, only one example of the F.K.6 was built. The gunners' nacelles were underslung on the central mainplane, armament remained two 0-303-in (7,7-mm) Lewis guns, and the 250 hp Rolls-Royce engine was retained. It is believed that relatively limited flight testing was undertaken.
  
  
Span, 62 ft 0 in (18,89 m).
Length, 37 ft 0 3/4 in (11,29 m).
Height, 17 ft 0 in (5,18 m).


H.King Armament of British Aircraft (Putnam)


F.K. 12. There were Sopwith and Vickers counterparts of this 1916 three-seat escort and anti-airship fighter triplane, all three having unconventional armament layouts to give a clear field of fire. The middle wing was attached to the top of the fuselage and carried two manned nacelles, each probably intended to have a Lewis gun on a pillar mounting. The guns would have commanded a wide field of fire in the forward hemisphere, being sited forward of the airscrew. Originally the gun-nacelles were above the middle wing; later they were underslung and of different form.


W.Green, G.Swanborough The Complete Book of Fighters


ARMSTRONG WHITWORTH F.K.6 UK

  In 1915, Frederick Koolhoven, the chief designer of sir W G Armstrong Whitworth
& Co Ltd, initiated work on a highly unorthodox three-seat triplane powered by a 250 hp Rolls-Royce 12-cylinder water-cooled engine. It was intended to accommodate two gunners each with a 0.303-in (7,7-mm) machine gun in shallow nacelles, mounted above the centre wing on each side of the fuselage, the gunners being seated ahead of the propeller plane of the tractor engine. Although a prototype was completed and allegedly designated F.K.5, this was never flown, being extensively damaged as a result of a ground loop during it first take-off attempt. The design was extensively revised early in 1916 to meet an RFC requirement for an airship interceptor and long-range escort fighter. The revised design is believed to have been designated F.K.6 (and certainly not F.K.12 as has sometimes been stated) and four examples were ordered, two of these being intended for the RNAS. In the event, only one F.K.6 was built. The gunners' nacelles were underslung on the central mainplane, armament remained two 0.303-in (7,7-mm) Lewis guns and the 250 hp Rolls-Royce engine was retained. It is believed that relatively limited flight testing was undertaken.

Span, 63 ft 0 in (18,89 m).
Length, 37 ft 0 3/4 in (11,29 m).
Height, 17ft 0 in (5.18 m).

W.Green, G.Swanborough - The Complete Book of Fighters
Believed to had been designated F.K.6, only one prototype was built.
The rebuilt triplane, probably the F.K.6, was designed as an escort fighter and Zeppelin destroyer.
O.Tapper - Armstrong Whitworth Aircraft since 1913 /Putnam/
Another view of the one and only F.K.6 triplane No. 7838.
W.Green, G.Swanborough - The Complete Book of Fighters
O.Tapper - Armstrong Whitworth Aircraft since 1913 /Putnam/