lected every 15 seconds) and compare with the INS TACAN range display.
Wind Speed and direction - Check as follows:
(1) Data selector - WIND.
(2) Left-hand display - Read wind direction to the nearest degree.
(3) Right-hand display - Read wind speed to the nearest knot.
Desired Track Angle and System Status - Check as follows:
(1) Data selector - DSRTK/ STS.
(2) Left-hand display - Read desired track angle to the nearest degree. Compare with course
(3) Right hand display - Read numbers indicating system status.