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The Fokker F28 Fellowship is a short range jet airliner designed and built by Dutch aircraft manufacturer Fokker. ==Design and development== Announced by Fokker in April 1962, production was a collaboration between a number of European companies, namely Fokker, MBB of West Germany, Fokker-VFW (also of Germany), and Short Brothers of Northern Ireland. There was also government money invested in the project, with the Dutch government providing 50% of Fokker's stake and the West German government having 60% of the 35% German stake. Projected at first to transport 50 passengers to 1,650 km (1,025 mi), the plane was later designed to have 60–65 seats. On the design sheet, the F28 was originally to mount Bristol Siddeley BS.75 turbofans, but the prototype flew with the lighter Rolls-Royce "Spey Junior", a simplified version of the Rolls-Royce Spey. The F28 was similar in design to the British Aircraft Corporation BAC One-Eleven and Douglas DC-9, as it had a T-tail and engines mounted at the rear of the fuselage. The aircraft had wings with a slight crescent angle of sweep with ailerons at the tip, simple flaps, and five-section liftdumper only operated after landing to dump the lift. These were employed rather than reverse thrust as the designers felt that doing so not only reduced weight, but maintenance also. Having no reversers also meant that on unpaved airstrips there was less chance of the engines ingesting debris. The leading edge was fixed (although one experimental model had leading edge slats and these were offered as an option) and was anti-iced by bleed air from the engines. The tail cone could split and be hydraulically opened to the sides to act as a variable air brake – also used on the contemporaneous Blackburn Buccaneer. This design was also copied and used on the HS-146, which became the BAe-146. The design is unique in that it not only slows the aircraft down rapidly, it can aid in rapid descents from economic cruising altitudes and also allowed the engines to be set at higher RPM which helped eliminate 'lag time'. This means the engines respond faster if needed for sudden speed increases or go-arounds on the approach to landing. The Fellowship had a retractable tricycle landing gear which used large low pressure tyres enabling the use of unpaved airstrips. Large wheel brakes also helped in shortening the landing run. In terms of responsibility for production, Fokker designed and built the nose section, centre fuselage and inner wing; MBB/Fokker-VFW constructed the forward fuselage, rear fuselage and tail assembly; and Shorts designed and built the outer wings. Final assembly of the Fokker F28 was at Schiphol Airport in the Netherlands.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fokker F28 Fellowship」の詳細全文を読む スポンサード リンク
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