190-00734-17
GTX 335 w/GPS Installation Guidance
Rev. 1
Page 4-10
4.2 GTX 335 Weight and Balance
After the installation, a weight and balance computation is required. Follow the guidelines as established in
AC 43.13-1B, Chapter 10, Section 2, as applicable. Make entries in the equipment list indicating items
added, removed or relocated along with the date accomplished. Include your name and certificate number
in the aircraft records.
Table 4-2 identifies the installed weight of the equipment. Refer to appendix A for equipment center of
gravity (CG) dimensions. For example weight and balance data, refer to table 4-3. Weights shown include
the unit, mounting rack, backplate, and connector.
Table 4-2 Weight of GTX Configurations
Table 4-3 Example Weight and Balance Calculation
Items
Weight
Dimensions and CG
lbs
kg
GTX 335, GPS panel mount
2.87
1.30
Refer to figure A-1
Previous Aircraft Weight and
Balance Calculated (date)
Useful Load (lbs.)
Empty Weight
(lbs.)
C.G. (in)
Moment
1093.30
2306.70
138.83
320,239
Description of items removed
from aircraft
Weight (lbs.)
Arm (in)
Moment
KT 76C Unit/Rack
2.61
55.00
143.55
Total removed
-2.61
55.00
-143.55
Description of items added to
aircraft
Weight (lbs.)
Arm (in)
Moment
GTX 335 Unit/Rack/Connector
2.87
55.00
157.85
Total added
2.87
55.00
157.85
Change
0.26
55.00
14.3
New Aircraft Weight and
Balance (date)
Useful Load (lbs.) Weight (lbs.)
C.G. (in)
Moment
1092.74
2306.96
138.77
320,253
