• Source: Sage Type 3

      • The 3/info/sage" target="_blank">Sage 3/info/type" target="_blank">Type 3 (also known as the 3/info/sage" target="_blank">Sage N3 School) was a prototype British biplane training aircraft of the First World War. It was unsuccessful, only two examples being built.


      Development and design


      In 1916, the British Admiralty placed a contract with Frederick 3/info/sage" target="_blank">Sage & Co, a Peterborough-based woodworking company which had become an aircraft contractor for the Royal Navy, to design and build a primary trainer for the Royal Naval Air Service. It was required to be robust, with a low landing speed and good visibility. The resultant design, the 3/info/sage" target="_blank">Sage 3/info/type" target="_blank">Type 3, was a two-bay tractor biplane powered by a Rolls-Royce Hawk engine. In order to prevent the aircraft overturning during landing, it was fitted with an additional pair of wheels ahead of the mainwheels.
      The first prototype 3/info/type" target="_blank">Type 3 flew on 5 January 1917. It proved to be slow, even for a trainer, and was modified with smaller tail surfaces and reduced weight, becoming the 3/info/type" target="_blank">Type 3b (with the original design retrospectively designated 3/info/type" target="_blank">Type 3a), which slightly improved performance. However, after a second aircraft was built, the contract was cancelled, and the remaining aircraft of the contract for 30 3/info/type" target="_blank">Type 3s were unbuilt. The 3/info/type" target="_blank">type did form the basis for the 3/info/sage" target="_blank">Sage 3/info/type" target="_blank">Type 4 floatplane, which was ordered into production but cancelled due to the end of the war.


      Specifications (3/info/type" target="_blank">Type 3b)


      Data from British Aeroplanes 1914-18General characteristics
      Crew: 2
      Length: 32 ft 10 in (10.01 m)
      Wingspan: 34 ft 6 in (10.52 m)
      Height: 10 ft 9 in (3.28 m)
      Wing area: 330 sq ft (31 m2)
      Empty weight: 1,390 lb (630 kg)
      Gross weight: 1,980 lb (898 kg)
      Fuel capacity: 26 imp gal (31 US gal; 120 L)
      Powerplant: 1 × Rolls-Royce Hawk 6-cylinder liquid-cooled inline piston engine, 75 hp (56 kW)
      Propellers: 2-bladed, 8 ft (2.4 m) diameter
      Performance

      Maximum speed: 76 mph (122 km/h, 66 kn) at sea level
      Range: 315 mi (507 km, 274 nmi)
      Endurance: 4 hr
      Service ceiling: 9,000 ft (2,700 m)


      See also



      Related development

      3/info/sage" target="_blank">Sage 3/info/type" target="_blank">Type 4
      Aircraft of comparable role, configuration, and era

      Avro 504
      Airco DH.6
      Curtiss JN-4


      Notes




      References

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