SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
4-37
Electronic Flight Instrument System (EFIS)
ELECTRONIC HORIZONTAL SITUATION INDICATOR
(EHSI)
The EHSI displays aircraft position relative to VOR radials, FMS
waypoints, and localizer and glideslope beams. The FULL, ARC, WX,
MAP, or MAP/WX displays are selected with switches on the display
controller. The EHSI displays the following information:
FULL, ARC, WX, MAP, OR MAP/WX MODES
D Heading (rotating dial) and aircraft symbol
D Lubber line and MAG/TRU annunciator
D Selected heading bug and digital display
D FMS drift bug
D Selected course/desired track pointer and digital display
D Course deviation
D NAV source annunciator
D TO/FROM pointer (FULL mode)
D TO/FROM annunciator (ARC, WX, MAP, or MAP/WX modes)
D Preselected course pointer and annunciator
D Vertical deviation display
D Bearing 1/2
D Distance to VOR/DME/WPT
D WPT/DME identifier and WPT alert
D NAV data (TTG/GS/ET)
D Wind vector display
D BC annunciator
D WX target annunciator
D Reversionary source annunciator
D Flags and comparators
D FMS alert message
D FMS approach annunciator
D TCAS traffic display (optional)