TM 55-1510-220-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
F.
AVIONICS FLIGHT CHECKS (CONT)
(1) Data selector - DIS/TIME.
(2) Left-hand display - Read distance to next waypoint to the nearest nautical mile. Compare with
TACAN readout.
(3) Right-hand display - Read time to reach next waypoint at present ground speed t
o the nearest
tenth of a minute. Compare with TACAN readout when tuned to a VORTAC station located at
the next waypoint.
k.
Distance to any TACAN station - Check as follows:
(1) Data selector - DIS/ TIME.
(2) Keys 7 and 9 - Depress simultaneously.
(3) FROM-TO display - Read flashing number of TACAN station being used for navigation.
(4) Left-hand display - Read distance to the TACAN station to the nearest nautical mile.
(5) Right-hand display - Read time to next waypoint.
(6) Left-hand display - Monitor (station number is se-
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