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Robinson Redwing
The Robinson Redwing was a British two-seat single-engined biplane light aircraft built in the UK in 1930. Twelve were produced, selling mostly to Clubs; one aircraft survives.
==Design and development==
First flown in May 1930, the Robinson Redwing appeared at the peak of the boom in light aircraft enthusiasm in the UK. It was a single bay biplane with simple, parallel pairs of interplane struts. With only slight stagger, the wings were easy to fold. They had equal span and chord and were unswept, with straight and parallel edges apart from rounded tips and a wide cut-out at the centre of the trailing edge for pilot visibility. The fuselage was rectangular in cross section, tapering rearwards and with a rounded decking. It was plywood covered and carried a conventional tail with a broad chord fin and balanced rudder.〔 The tailplane was fixed to the top of the fuselage and the elevators were divided to allow rudder movement. Pilot and passenger sat side by side under the upper wing. Ahead of them the fuselage tapered to the engine mounting. The wide track undercarriage was of split axle type, with main legs sloping forward from the wheels to the upper fuselage longerons and with a pair of bracing struts rearwards to the keel. The undercarriage was completed with a tailskid.〔
The first prototype, later known as the Redwing I flew under the power of a 75 hp (56 kW) A.B.C. Hornet flat four air-cooled engine, but trials during the summer of 1930 suggested a different powerplant.〔 As a result, the second Redwing flew with an 80 hp (60 kW) Armstrong Siddeley Genet IIA five cylinder radial, becoming known as the Redwing II.〔 The next eight aircraft were also built as Redwing IIs, but the last two produced began as Redwing IIIs. These had wings of smaller span (24 ft 0 in compared with 30 ft 6 in) and much reduced wing area (154 sq ft compared with 250 sq ft) and wheel fairings, both modifications aimed at improved cross-country performance.〔 The first of these was delivered in May 1933 but failed to get a Certificate of Airworthiness until refitted with full area wings in 1934; the second was returned to Redwing II standard before its sale.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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