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Страна: Великобритания

Год: 1916

J.Bruce British Aeroplanes 1914-1918 (Putnam)

Sage Type 3

  THE Sage Type 3 was designed in 1916 at the request of the Air Department of the Admiralty for a primary trainer. The principal requirements were for robustness and a low landing speed.
  The Sage Type 3 emerged in January, 1917, as a two-bay biplane powered by the 75 h.p. Rolls-Royce Hawk engine. Six experimental machines were ordered, and there was the prospect of substantial production to follow. The machine was entirely conventional in appearance and construction. The undercarriage was somewhat reminiscent of that of the Armstrong Whitworth F.K.8, but two small wheels were fitted at the forward end of the horizontal skid.
  The prototype, N. 5280, first flew on January 5th, 1917, and a large order for the type was placed by the Admiralty. Production had just begun when the Admiralty cancelled the contract and asked Sages to concentrate on the development of seaplanes.
  The performance of the Type 3 was rather poor, even for a trainer. The prototype underwent some modification and was fitted with smaller vertical tail surfaces; the all-up weight was reduced somewhat and the maximum speed was increased by 4 m.p.h. In its modified form the machine was known as the Type 3b, and the original form was retrospectively re-designated Type 3a.


SPECIFICATION
  Manufacturers: Frederick Sage & Co., Ltd., Peterborough.
  Power: 75 h.p. Rolls-Royce Hawk.
  Dimensions: Span: 34 ft 6 in. Length: 32 ft 10 in. Height: 10 ft 9 in. Chord: 4 ft 9 in. Gap: 5 ft. Stagger: 11-8 in. Dihedral: 2 30'. Incidence: upper 3, lower 5. Span of tail: 11 ft 4 in. Airscrew diameter: 8 ft.
Areas: Wings: 330 sq ft. Ailerons: each 18 sq ft, total 72 sq ft. Tailplane: 26 sq ft. Elevators: 24 sq ft. Fin: 4 sq ft. Rudder: 10 sq ft.
  Weights: Empty: 1,390 lb. Loaded: Type 3a, 2,064 lb; Type 3b, 1,980 lb.
  Performance: Type 3a. Maximum speed at ground level: 72 m.p.h. Climb to 5,000 ft: 20 min. Ceiling: 9,000 ft. Endurance: 4 hours. Type 3b. Maximum speed at ground level: 76 m.p.h. Ceiling: 9,000 ft. Endurance: 4 hours.
  Tankage: Petrol: 26 gallons. Oil: 4 gallons.
  Serial Number: N.5280.

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Описание:

  • J.Bruce British Aeroplanes 1914-1918 (Putnam)
  • H.King Armament of British Aircraft (Putnam)
  • Jane's All The World Aircraft 1919
  • Журнал Flight