Gps Steering (Gpss); Gad 29/29B (Optional) - Garmin G5 Pilot's Manual

Electronic flight instrument non-certified aircraft (includes the gfc 500)

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Additional Features

4.2 GPS STEERING (GPSS)

NOTE: This section is only applicable to non-Garmin autopilots.

When installed with the appropriate interfaces, the G5 can interface to some third-

party autopilot systems.

The GAD 29B (optional) is an adapter that converts digital heading and course

data into analog signals used by analog autopilot systems. The GAD 29B is installed

remotely between the G5 and an existing autopilot. The analog signals from the GAD

29B mimic those of spinning-mass heading gyros that provide data to the autopilot

and allow the gyro to be replaced by the G5 and GAD 29B combination. The GAD 29B

is also used to interface certain Garmin IFR navigators with the G5.

The GAD 29B sends analog information about the G5's heading bug to a third-party

analog autopilot, allowing it to operate in HDG mode and follow the G5 heading bug.

The navigation course selected on the G5 is also sent to the analog autopilot,

enabling proper operation of the autopilot's NAV mode.

NOTE: If multiple navigators are configured, course data is sent by the GAD

29B for navigator #1 only.

GPS Steering (GPSS) provides roll command signals calculated by the GPS navigator

to the autopilot in order to allow the aircraft to anticipate turns, make smooth

G5 Electronic Flight Instrument Pilot's Guide for Non-Certified Aircraft

Figure 4-8 GAD 29B (Optional)

190-02072-00 Rev. J

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