nose of the aircraft. For example, if an object was directly behind an aircraft, its relative
bearing would be 180° regardless of the aircraft's heading. In Figure 2-4, the mountain
peak's relative bearing is 070°.
Figure 2-4 -- True headings.
TB is the relation of an object to the aircraft using true north as the reference point
instead of the aircraft s position. TB is useful when the aircraft is turning and it is difficult
to determine the aircraft s actual heading. Figure 2-5 shows the true bearing (280°) of
the mountain peak from the aircraft.