纵列式双旋翼直升机 tandem rotors helicopter
刚接式旋翼直升机 rigid-rotor ; helicopter ; rigid-rotor helicopter
纵列双旋翼直升机 helicopter ; tandem-rotor
交叉式双旋翼直升机 intermeshing-rotor ; helicopter
前后式双旋翼直升机 tandem rotor helicopter
四旋翼直升机 Draganflyer V Ti RC Gyro
侧向旋翼直升机 lateral-rotor helicopter
双套旋翼直升机 tandem rotor helicopter
双旋翼直升机 twin-rotor helicopter
首先，确定了四旋翼直升机的设计方案。
First, the project of four-rotor helicopter has been decided.
对采用电控旋翼直升机的配平及操纵特性进行了研究。
Research on the trim and control characters of the helicopter was conducted, which featured with the electrical controlled rotor (ECR).
以此为基础，建立了电控旋翼直升机的飞行动力学模型。
Then the flight dynamics model of the ECR helicopter was constructed.
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