Figure 43

INSTRUMENT NAVIGATION

Now, suppose that we drift off of our desired course to the east. (A wind from the west or

poor heading control could do this.) Our indications will be as in Figure 43.

Figure 43

In Figure 43c the CDI is to the left of center indicating a left turn to get back on course. In

Figure 43a, a left turn will place the tail of the needle in a position to rise to the course of 360.

In Figure 44 the aircraft is north of the station with 360 in the OBS. However in the case a

heading of 180 is being flown.

Figure 44

Again, consider the aircraft drifting off course to the east (Figure 45).

RADIAL TRACKING AND COURSE CONTROL 3-33