Preparation - Garmin GI 275 Installation Manual

3 PREPARATION

3.1 Materials and Parts............................................................................................................................3-2
3.1.1 Garmin........................................................................................................................................3-2
3.1.2 Commercial ................................................................................................................................3-4
3.1.3 Special Tools Required ..............................................................................................................3-6
3.2 GI 275 Installation Requirements .....................................................................................................3-7
3.2.1 Power Distribution .....................................................................................................................3-7
3.2.2 Standby Instruments.................................................................................................................3-10
3.2.3 Engine Indication System (EIS)...............................................................................................3-11
3.2.4 GPS Requirements ...................................................................................................................3-14
3.2.5 Display Lighting Control .........................................................................................................3-14
3.2.6 HSDB Architecture ..................................................................................................................3-15
3.3 Interfaces to Other Equipment........................................................................................................3-20
3.3.1 GPS Source ..............................................................................................................................3-20
3.3.2 Navigation Receiver.................................................................................................................3-20
3.3.3 Radar Altimeter ........................................................................................................................3-20
3.3.4 Traffic.......................................................................................................................................3-20
3.3.5 Data Link..................................................................................................................................3-21
3.3.6 WX-500 Stormscope® .............................................................................................................3-21
3.3.7 Audio Panel ..............................................................................................................................3-21
3.3.8 Transponder Control ................................................................................................................3-21
3.3.9 Autopilot...................................................................................................................................3-21
3.3.10 External TAWS ........................................................................................................................3-23
3.4 Selection of GI 275 System Components ......................................................................................3-24
3.4.1 Aircraft Eligibility Checklist....................................................................................................3-24
3.4.2 Attitude and Air Data ...............................................................................................................3-26
3.4.3 GEA 24/110 Engine Adapter ...................................................................................................3-26
3.5 Electrical Load Analysis.................................................................................................................3-29
3.5.1 Measurement of Electrical Loads.............................................................................................3-30
3.5.2 Battery Capacity Analysis........................................................................................................3-37
190-02246-10
Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 3-1