What is the difference between a fixed pointer and a moveable pointer in an attitude gyro?
The pointer on most attitude gyros indicates the aircraft bank angle. This angle is determined by the markings on the dial at the top arch of the attitude indicator. Modern attitude indicators have moveable pointers that point to the indicated bank angle marking as the gyro banks as well. The bank angle dial is fixed against the gyro horizon pictorial display. This gives the best representation of the gyro movement with the aircraft movement. Vintage style attitude indicators have fixed pointers that remain fixed as the bank angle dial moves to the corresponding dial marking as the gyro banks as well.
