TM 1-1510-218-10
3C-27
27
28
1. Course Readout / Label
2. FMS Message Alert
3. FMS Heading Bug
4. Course Deviation Scale
5. Vertical Deviation Scale
6. Vertical Deviation Pointer
7. Lateral Deviation Bar
8. Course Source Annunciations
9. FMS Flight Modes
10. Data Selection Display
11. Course Pointer
12. Wind Direction
13. Compass Rose
14. Bearing Pointer
15. Compass Benchmarks
16. Distance of Bearing Source
17. Bearing Source
18. Course Source Distance Readout
19. Free Format Line (ARC-210 Freq)
20. Digital HDG Bug Readout
21. Heading Bug
22. Track Indicator
23. Digital Heading Readout
24. DR or RAIM Alert
25. FMS OFST
26. Wind Pointer
27. TO / FROM Indicator
28. Miniature Aircraft
Figure 3C-10. Electronic Horizontal Situation Indicator
Table 3C-6. EHSI Display Modes
MODE
FORMAT
HSI
HSI (360° compass)
HSI ARC (Partial 80° compass)
MAP
Map ARC (Partial 80° compass)
Map (360° reference)
Diagnostics
MFD Status
d. EHSI Outputs. The EHSI outputs the
following to the flight director.
(1) HDG Datum.
(2) CRS Datum.
(3) LOC Tune if the course source is LOC.
(4) Lateral Deviation.
