The flap or slat drive system in the aircraft according to claim 15, wherein said actuating motor is a stepper motor having a controllable actuating speed and motor torque.

• 皮瓣或金属板驱动系统在飞机按照要求15个，其中说，驱动电机是步进电机有一个可控的速度和驱动电动机的扭矩。