XV-15 信誉卡发动机舱和旋翼一块儿倾转，所以成倾转旋翼（tilt rotor）。半刚性桨叶可算是贝尔信誉卡看家手法了，当年红透直升机世界半边天信誉卡 UH-1，就是采用半刚性信誉卡双叶旋翼，桨叶和桨毂刚性...
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两家公司还为潜在的JFTL方案制定了一个“四倾转旋翼”的概念。
The two companies have also developed a quad tilt-rotor concept for a potential JFTL program.
结合倾转旋翼航空器的整体气动结构设计，建立了该型航空器的数学模型。
Based on the aerodynamic structure design of a tilt rotor aircraft, the mathematical model of this aircraft was established.
摘要：文中的研究目的是建立倾转旋翼飞机的模型，从而解决倾转旋翼飞机的控制问题。
Absrtact: the purpose of this study is to establish the model of tilt rotor aircraft, so as to find an approach to the control problem.
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