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Bristol Bullpup
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The Bristol Type 107 Bullpup was a British fighter aircraft built in the 1920s. It was not selected for squadron service and only the single prototype was built
==Background==
The design of the Bullpup was an outcome of a series of design studies for fighter undertaken by Frank Barnwell during the 1920s. In 1924 Barnwell had started work on a fighter powered by the Rolls-Royce Falcon to meet the requirements of specification F.17/24. This project was shelved since Bristol preferred to use their own engine designs, but was revived in 1926 when Barnwell started work on a design, designated the Bristol 102, to meet either F.9/26 for a day and night fighter or N.21/26 for a shipborne fighter. A subsequent proposal, designated Type 105 was for another aircraft to meet F.9/26 powered by the Mercury engine then under development at Bristol. These proposals looked enough for a pair of mock-ups to be constructed for inspection by the Air Ministry in February 1927. The two aircraft were similar in design, the interceptor to specification F.17/24 design being slightly smaller and lighter and not equipped with radio. As a result Bristol were asked to revise the design so that it met a later interceptor specification, F.20/27. Subsequently a prototype was ordered for evaluation, but the other design did not gain official backing. Nevertheless Bristol considered it promising enough to build a prototype to be entered for the F.9/26 trials as a private venture, powered by a Bristol Jupiter because the supply of Mercurys was expected to be limited. This became the Bristol Bulldog〔Barnes 1988 p.212〕
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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