Gsu 25 Unit View; Section 10 Gsu 25 Installation (Core G3X Lru); Equipment Description - Garmin G3X Installation Manual

10 GSU 25 INSTALLATION (CORE G3X LRU)
The GSU 25 can be installed as part of the G3X system. This section contains general information as well
as installation information for the GSU 25. Use this section to mount the GSU 25 unit.

10.1 Equipment Description

NOTE
There is no TSO/ETSO applicable to the GSU 25.
The GSU 25 is intended for experimental aircraft and LSA (light sport aircraft) markets. The Garmin
GSU 25 Sensor Unit is not a TSO-certified product and has received no FAA approval or endorsement.
The GSU 25 is intended to be used as a part of the G3X system and it is not suitable for installation in type-
certificated aircraft.
The GSU 25 is an LRU that provides AHRS and Air Data information in a single mechanical package.
The GSU 25 interfaces to a remote mounted GMU 22 for heading information and also computes OAT and
TAS from inputs provided by the GTP 59. The GSU 25 does not provide engine/airframe interface, see
Section 6 for engine/airframe interface using the GEA 24. Up to three GSU 25 units may be installed to
provide redundancy and cross-checking of attitude, heading, and air data.
The GSU 25 provides the following functions:
• Attitude (pitch, roll)
• 3 axis accelerations
• 3 axis angular rates
• Magnetic heading (with input from GMU 22)
• Pressure/density altitude
• Vertical speed
• Indicated/true airspeed
• Angle of attack
• Outside and total air temperature (via GTP 59)
190-01115-01
Rev. L
P251
P252
Figure 10-1 GSU 25 Unit View
G3X Installation Manual - GSU 25 Installation
Page 10-1