Patent ID: 7644634

Claim:
An aircraft having a device for determining the rotation angle of a shaft in the aircraft, the device comprising: a shaft designed for operating a component, the component selected from the group consisting of a brake flap, a landing flap, a landing slat, a rudder, an aileron and an elevator, the shaft having a first region and a second region, a motor which rotates the shaft to detect first rotation data corresponding to a first rotation angle of the first region of the shaft, the motor being designed to carry out said detection in an absolute manner; a position pickup unit designed to detect second rotation data corresponding to a second rotation angle of the second region of the shaft; a synchronization unit designed to synchronize the first rotation data with the second rotation data; and a control unit designed to provide a calibration procedure which determines a zero point of the motor on the basis of the second rotation data provided by the position pickup unit.