Maintenance Manual
190-02472-02
G3X Touch EFIS Part 23 AML STC
Revision 2
Page 10
2.1.3 GSU 25D ADAHRS
The GSU 25D is an LRU that provides Air Data Computer and Attitude Heading Reference System
(ADAHRS) information. The GSU 25D interfaces to a remote mounted GMU 11 magnetometer for
heading information, and computes OAT and TAS from inputs provided by the GTP 59. The GSU 25D is
connected to existing primary pitot/static system. Only one GSU 25D is approved for installation and
interface by this STC.
Figure 2-3 – GSU 25D ADAHRS
2.1.4 GMU 11 Magnetometer
The Garmin GMU 11 Magnetometer is a remote mounted device that provides magnetic field
measurements to the GSU 25D to support computation of flight attitude and heading data.
Figure 2-4 – GMU 11 Magnetometer
2.1.5 GTP 59 Temperature Probe
The Garmin GTP 59 is an externally mounted temperature probe that provides raw outside air
temperature data. The device is a three-wire temperature probe interface.
Summary of Contents for G3X Touch
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