A flight control display shows a representation of terrain, the horizon, an aircraft
with a fuselage and aircraft wings, and a gamma ladder. The observer has a viewing
direction at least in a predefined attitude range, which viewing direction is directed
along the momentary flight path. The aircraft is therefore rotated depending on
its momentary angle of incidence and angle of yaw with respect to the observer's
viewing direction. The representation of the terrain is obtained from the relative
position of a geodetic system of coordinates XG, YG, ZG
and an aerodynamic system of axes of the airplane, in which case a reference line
of the gamma ladder coincides with the horizon.