TM 55-1510-219-CL
Repeat 1 thru 5 for each WY PT.
6. Flight plan cross check - Data selector to DIS/TIME (left display will
indicate distance between WY PTS TO-FROM). Press WY PT change.
Verify logical distance between waypoints.
TACAN STATION SELECTION
1. Data selector - L/L WY PT.
2. Simultaneously press - KEYS 7 and 9.
3. WY PT thumb wheel - DESIRED TACAN.
4. TACAN station position - LOAD LAT/LONG.
5. INSERT/ADVANCE - PRESS.
Latitude and longitude in arc-seconds relating to tenths entered is shown.
6. ARC/SEC and Tenths - LOAD.
7. INSERT/ADVANCE - PRESS.
8. TACAN station altitude - LOAD (Select KEY 4 OR 6). Enter altitude.
9. INSERT/ADVANCE - PRESS
10. TACAN channel number - LOAD (Select KEY 2 or 8). Enter channel.
Repeat steps 1 thru 8 for all TACAN stations.
HSI INTERFACE TEST
NOTE
Interface test must be performed after alignment progresses from state 8 but
prior to switching to NAV.
1. AUTO/MAN switch - MAN.
2. Couple INS to FD and engage AP.
P-5
