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P-61 Black Widow

机译：P-61黑寡妇

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The first aircraft designed specifically as a radar-equipped night fighter, the Army Air Forces P-61 Black Widow had a brief but distinguished World War 11 career. The Northrop aircraft was slow getting into combat, delayed by an overly ambitious design and John Northrop's preoccupation with his flying wing projects. The first P-61 s did not enter service until mid-1944. They served well, but, by then, targets in all theaters were hard to find. In November 1940, Northrop proposed a very large, two-engine fighter with a twin boom layout, sufficient to carry a required heavy early radar, powerful armament, and fuel for extended loitering time. The design was preferred to Douglas' offer of a modified A-26 Invader, and two prototypes were ordered in January 1941. Testing of the initial production run revealed that the top turret caused such violent buffeting that it had to be removed after the 37th P-61A. Eventually, however, the program smoothed out. The key to the P-61 's success was the Western Electric SCR-720 airborne intercept radar.
机译：陆军空军P-61黑寡妇是第一架专门为配备雷达的夜间战斗机而设计的飞机，其短暂而杰出的第一次世界大战经历是其职业生涯。诺斯罗普的飞机起步缓慢，但由于过于雄心勃勃的设计以及约翰·诺斯罗普对他的机翼项目的专注而推迟了战斗。第一架P-61直到1944年中期才开始服役。他们的表现不错，但是到那时，所有剧院中的目标都很难找到。 1940年11月，诺斯罗普提出了一种具有双臂布局的超大型两引擎战斗机，足以携带所需的重型早期雷达，强大的武器装备和燃料，以延长飞行时间。该设计优于道格拉斯提供的经过修改的A-26侵略者，并于1941年1月订购了两架原型机。对初始生产运行的测试表明，顶部炮塔造成了剧烈的晃动，因此在第37架P后必须将其拆除。 -61A。最终，该程序顺利完成。 P-61成功的关键是Western Electric SCR-720机载拦截雷达。

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