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4.5-Inch Beach Barrage Rocket
The 4.5-Inch Beach Barrage Rocket, also known as "Old Faithful",〔Ordway and Wakeford 1960, p.77.〕 was a rocket developed and used by the United States Navy during World War II. Originally developed from the "Mousetrap" anti-submarine rocket, it saw widespread use during the war, being replaced by more powerful rockets toward the end of the conflict.
==Development==
Developed during 1942 by the California Institute of Technology (Caltech), under the direction of Charles Christian Lauritsen,〔Fowler 1975, p.229.〕 in response to a requirement by the United States Navy for a rocket capable of being launched from landing craft to provide fire support during amphibious landings, the 4.5-Inch BBR was an improved version of the Mousetrap anti-submarine rocket system, using the Mousetrap's Mk 3 rocket motor mated to a general purpose aerial bomb.〔Rottman 2009, p.19.〕 An impact fuse was mounted in the nose of the rocket, with an annular fin assembly providing stability.〔Parsch 2006〕 A modified, larger version of the Beach Barrage Rocket, using the Mk 9 rocket motor, was also produced, being introduced into service in late 1944.〔〔
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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