TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
f.
Fly directly toward a TACAN station of known direction and near enough to provide a reliable
signal.
g.
Rotate course card on course deviation indicators until direction to station is beneath course index.
The course deviation indicator needle should be nearly centered and the to/from indicator should
read to. The red glideslope warning flag should be visible but the NAV warning flag should be
concealed.
h.
Rotate course card until direction to station is beneath reciprocal course index. The course
deviation indicator needle should be centered and the to/from indicator should read from.
i.
Rotate the course card until the direction to the station is directly below the course index again and
the to/from indicator reads to.
j.
Fly a 90° right turn such that the flight path is at a 90!DE angle to the direction to the station. The
course deviation indicator needle should deflect noticeably to the left after one or two miles of flight
(assuming the station is 25 to 50 miles from the aircraft).
k.
TACAN range test: Achieve adequate usable reception at
4-33
