What effect does the aircraft heading have on the TO-FROM indicator?

The TO-FROM indicator is designed to provide information to the pilot regarding the aircraft's position in relation to a navigational aid, such as a VOR station. The primary function of the TO-FROM indicator is to show whether the aircraft is moving toward (TO) or away from (FROM) the navigational aid.

The readings from the TO-FROM indicator are based on the relative position of the aircraft to the VOR station and are independent of the aircraft's heading. This means that whatever direction the aircraft is facing does not alter whether the indicator shows a TO or FROM indication. Thus, the heading does not influence the readings; it simply reflects the aircraft's position relative to the station.

Understanding this relationship helps pilots make navigational decisions without being concerned about their aircraft’s facing direction in relation to the indicator's readings.