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Страна: Великобритания

Год: 1916

Fighter

Варианты

C.Andrews Vickers Aircraft since 1908 (Putnam)

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   Also in the single-seat fighter class were the two Vickers pusher types, the F.B.12 and the F.B.26. Both had chequered careers. The F.B.12 was also intended for the 150 hp Hart static radial engine, but continual delays with this engine and the shortage of rotaries for experimental work led to the installation of an 80 hp Le Rhone taken from another aeroplane. The F.B.12 flew in June 1916, but, being underpowered, had a most disappointing performance. A 100 hp Gnome monosoupape was then substituted. Even in this guise, as the F.B.12A, it still had only two-thirds the designed power, and so lost any performance advantage it might have had (with the 150 hp promised from the Hart) over the D.H.2 and F.E.8 pusher fighters already in service, but it went to France in December 1916 for operational trials. The F.B.12B with the Hart engine was completed in February 1917, its wing span increased from 26 ft to 29 ft 9 in, but it crashed, thus helping to settle the fate of the Hart engine once and for all. A contract was placed with the Wells Aviation Company of Chelsea for the F.B.12C, and the few examples made were fitted with a variety of engines, including Gnome monosoupape, Le Rhone and the Anzani static radial, all nominally about 100 hp. The AID report on the first production example, A7351, was so critical, and disclosed a top speed of only 87 mph, that, coupled with the failure of the Hart, it could lead to nothing but a cancellation of the contract.


   F.B.12C - One 150 hp Hart. Span 29 ft 9 in, upper, and 26 ft 9 in, lower; length 21 ft 10 in; height 8 ft 7 in; wing area 237 sq ft. Empty weight 927 lb; gross weight 1,447 lb. Max speed 87 mph at 6,500 ft; climb to 10,000 ft - 18 1/2 min; service ceiling 14,500 ft; absolute ceiling 15,000 ft; endurance 3 1/4 hr. Armament one Lewis gun mounted in nose of nacelle.

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Описание:

  • C.Andrews Vickers 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