6. DRIFT CORRECTION ANGLE - the angle between the heading of an aircraft and the
desired course (slang: "crab angle").
For purposes of ATM navigation, a course can be thought of as a TACAN radial, a straight line
between two fixes (either during point-to-point navigation, or the course to fly for compliance
with a "present position direct" clearance), an arc, or a final approach course during a GCA
In summary, it is the student's responsibility to request headings, which will bracket the drift
correction angle in order to determine a drift correction heading which will cause the aircraft to
track on the desired course.
Exception: in the T-2C (not in the 2F101), once established on an arc, the student may request
the IP to "maintain the arc". In the 2F101, the student will navigate throughout all arcs.
Figure 3-1 Tracking
Inbound and outbound radial tracking procedures are essentially the same. The difference is
when tracking outbound, the course is the same as the radial, and when tracking inbound, the