G5 Afcs Configuration; Afcs Operation - Garmin G5 Pilot's Manual

AFCS

3.1.8 G5 AFCS CONFIGURATION

The G5 can be configured as a standalone unit or as a backup unit for a G3X or G3X
Touch system.
When configured as a standalone unit with a GMC controller and GSA servos:
• The G5 supports the following modes: LVL, PIT, ROL, HDG
magnetometer)
GP, and VNAV.
• GP mode requires ARINC 429 data from an IFR navigator.
• VNAV mode requires RS-232 data from a portable GPS.
When configured as a backup unit for a G3X or G3X Touch system:
• The G5 supports the following modes: LVL, PIT, ROL, HDG, TRK, GPS, VS, IAS,
ALT, ALTS, TO, GA, and GP.
• GP mode requires ARINC 429 data from an IFR navigator.
• TRK mode is selected using the HDG Button on the GMC and is only available
when magnetic heading is unavailable.

3.1.9 AFCS OPERATION

NOTE: When the G5 is configured as part of a G3X/G3X Touch system, the
G5 can be used to drive the autopilot and flight director only when all GDUs
are removed from the network.
AFCS functionality is distributed across the following Line Replaceable Units (LRUs):
• GMC 305/307 AFCS Mode Control Unit
• GSA 28 AFCS Pitch/Roll/Yaw Damper (optional) servos.
The AFCS system can be divided into these main operating functions:
• Flight Director (FD) — Flight director commands are displayed on the display
The flight director provides:
– Command Bars showing pitch/roll guidance
– Vertical/lateral mode selection and processing
– Autopilot communication
40
G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft
, TRK
(for installations without a magnetometer)
(for installations with a
, GPS, VS, IAS, ALT, ALTS,
190-02072-00 Rev. G