GDL 90 System ICA, Helicopter STC
Garmin AT
2345 Turner Rd SE
21 December 2005
Salem, OR 97302
Part #: 560-0255-00 Rev A
©
Copyright 2005 Garmin AT All Rights Reserved
Page 11 of 13
Table 2. Unit Weights
Item Weight
GDL 90 only
5.2 lbs
GDL 90 mounting tray
1.0 lbs
GDL 90 mounting tray with optional cover
1.2 lbs
Micro APM
0.1 lbs
GSL 71 only
1.67 lbs.
GSL 71 mounting tray
0.97 lbs.
Table 3. Unit Center of Gravity
Model Series & Mount Location
TCDS
Center of Gravity Station (inches)
AS-350 Series
Baggage Compartment
(Rack for Battery Shelf)
Upper Skin
Lower Skin
Upper Skin
Panel or Console
H9EU
152.0 (GDL 90 & tray, MicroAPM)
64.0 (GPS antenna)
89.0 (UAT bottom antenna)
184.0 (optional, UAT top antenna)
34.0 (optional, GSL 71 & tray)
Procedures and data required for wiring maintenance are described in the ‘Electrical
Connections’ section in the appropriate Installation Manuals as detailed in Section 2.1.
The electrical load analysis may need update after maintenance in accordance with AC 43.13-
1B, Chapter 11. Use the values in Table 4 for computation:
Table 4. Unit Power Loads
14 VDC
28 VDC
Input
Typical Max Typical Max
GDL 90 Main Power
1.5 A
3.00
750mA
1.5
GSL 71 Main Power
200 mA
1.0A
150mA
500mA
Note: Circuits should be protected in accordance with guidelines in AC 43.13-1B, chapter 11,
section 2, paragraph 429.
Power inputs should be across a minimum of all four specified
GDL 90 input pins.
2.10
Diagrams
Refer to the GDL 90 and/or GSL 71 Installation Manuals (listed under reference documentation
in paragraph 2.1 of this document) for drawings applicable to this installation.
