Equipment; Figure 1-9 Vfr Gps Antenna - Garmin GI 275 Installation Manual

1.3 Equipment

Equipment installed by this STC is grouped into three categories:
1. Display Sensors
2. Engine Sensors
3. Other Equipment
1.3.1 Display Sensors
1.3.1.1 VFR GPS
The GI 275 contains a VFR GPS that can be used as a backup GPS or as a restricted primary GPS source.
NOTE
Credit is not taken for the GI 275 internal GPS for GPS navigation (NAV) in IFR flight;
the equipment and operational requirements for IFR must be met by other navigation
source(s) in the aircraft.
The VFR GPS will be capable of displaying moving map functions depicting ownship position, velocity,
ground speed, ground track, traffic overlay, weather, stormscope, and direct-to only functions in certain
instances.
The internal VFR GPS interfaces to a glareshield-mounted GPS antenna, which can be used in the event of
a failure of the primary GPS source or to provide VFR only situational information. Only one VFR GPS
antenna is needed for all GI 275s. The GPS data will be used by the interfacing GI 275 and it will forward
the data to any GI 275 configured to receive the data.
1.3.1.2 Internal ADAHRS
The GI 275 ADAHRS and ADAHRS+AP variants contain an integrated ADAHRS. The internal
ADAHRS units require the pitot/static lines to be connected. Additionally, either the VFR GPS or a GPS
source approved by this STC is required.
190-02246-10
Rev. 11

Figure 1-9 VFR GPS Antenna

GI 275 Part 23 AML STC Installation Manual
Page 1-20