Plain English Meaning

A guidance display that shows the pilot exactly how to position the aircraft to follow a chosen path. The pilot keeps the aircraft symbol matched to the cue, and the desired flight path is flown.

Full Definition

An instrument system that computes and displays steering guidance cues on the attitude indicator, showing the pilot the pitch and bank attitudes required to fly a selected flight path. The flight director processes inputs from navigation, air data, and mode-control sources and presents the resulting commands as visual bars or a cue symbol that the pilot follows by hand-flying, or that the follows automatically when .