If additional trainer aircraft are needed, the Pentagon plans to redesignate some of its existing rotorcraft rather than buying new airframes.
如果需要额

练机,五角大楼计划
次指派一些现有


机而不是购买新
。
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They merged with Boeing and released a new model, the Model 114, which can be considered the ancestor of today's CH-47. In 1962, the HC-1B was redesignated as the CH-47A under the 1962 United States Tri-Service Aircraft designation system.
他们与波音公司合
, 
布了一款新机型, 即114型,可以被认为是今天CH-47的祖先。 1962年, HC-1B被重新命名为CH-47A, 这是根据1962年美国三军飞机命名系统进行的。