| 翻訳と辞書 |
Avro 730
The Avro 730 was a planned Mach 3 reconnaissance aircraft and strategic bomber for the Royal Air Force. If it had proceeded into service, the aircraft would have replaced the V bombers as the primary nuclear weapons delivery system for Britain's nuclear deterrent.〔Brookes 1982, p. 90.〕 It was cancelled in 1957 along with other development on manned aircraft as part of the 1957 Defence White Paper.
==Development==
During the early Cold War, the RAF bomber fleet of V bombers filled the nuclear deterrence role for Britain. The need for a very-long range supersonic strategic reconnaissance aircraft to support the V bombers both pre- and post-bombing was identified; an Operational Requirement, OR.330, for such an aircraft was identified and a specification was drawn up in 1954 for an aircraft that would be capable of entering the Soviet Union and avoiding air defenses.〔Polmar 2001, p. 9.〕 The aircraft envisaged would have to be capable of maintaining Mach 2.5 at 60,000 ft (18,300 m), with the ability to reach Mach 3, and operate at a maximum range of 5,754 mi (9,260 km). At that point in time, it was the most ambitious high-performance aircraft in the world.〔
There were three major submissions from the aircraft manufacturers: the Handley Page HP.100, Vickers SP4, and the Avro Type 730.〔 All were futuristic delta or needle shapes in appearance employing multiple engines, 12 on the HP.100, 16 mounted horizontally at the rear of the Vickers. Avro were given a contract in mid-1955 to develop their submission aircraft.〔 As an aid to development, the Bristol Type 188 aircraft was built to test the compound-delta wing shape, and later, the effects of prolonged supersonic flight on metal.〔Bud and Gummett 2002, p. 49.〕 Up to 10 prototypes of the aircraft were proposed, necessitated in part by the decision to give the aircraft bombing capability.〔Polmar 2001, p. 10.〕
The first prototype was to have been designated ''Avro 731'', a three-eighths scale test aircraft, scheduled to fly in 1959.〔 The prototype was under construction when the minister, Duncan Sandys, announced the decision to cancel its development.〔Polmar 2001, p. 11.〕 It had been suspected that by the time the aircraft came into service a decade later, it would have been vulnerable to Soviet advances in anti-aircraft missile technology.〔Bartlett 1971, p. 134.〕 The Bristol 188 project continued despite the cancellation of the 730. Aspects and influences of the Avro 730 encouraged studies at the Royal Aircraft Establishment, Farnborough, into supersonic transport aircraft, which in turn eventually contributed to the development effort behind Concorde.〔Bud and Gummett 2002, p. 50.〕
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「Avro 730」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|