C01-01-08 5 Feb 2009 Page 6-9
Section 6
Weight & Balance /
Model GA8-TC 320 Equipment List
6.3.2 Procedure for the Loading Envelope Chart
1. Write the Aircraft’s Basic Weight, Arm, and Moment (Index) that corresponds to the desired
conguration contained on the Aircraft Load Data Sheet supplied with this manual.
2. Write the total Weight in each section under the Weight heading in the appropriate boxes
3. Next to the Zero Fuel write the sum of all the Weights in each section and the Basic Weight
under the Weight heading.
4. Write the Take-off fuel Weight and add this to the Zero Fuel Weight to obtain the Take-off
Weight. Ensure this does not exceed the Aircraft Maximum Take-off Weight.
5. Write in the Trip fuel Weight and deduct this from the Take-off weight to obtain the Landing
Weight. Ensure this does not exceed the Aircraft Maximum Landing Weight.
6. For each section multiply the Weight by the Arm given on the sheet and write the result
under the Moment heading in the appropriate boxes.
7. Next to the Zero Fuel write the sum of all the moments in each section and the Basic
Moment under the Moment heading.
8. Divide the Zero Fuel Moment by the Zero Fuel Weight and write the result next to Zero
Fuel Centre of Gravity.
9. Multiply the Take-off Fuel Weight by the Arm given on the sheet and write the result under
the moment heading in the appropriate box.
10. Next to the Take-off write the sum of the Zero Fuel Moment and the Take-off Fuel Moment
under the Moment heading.
11. Divide the Take-off Moment by the Take-off Weight and write the result next to Take-off
Centre of Gravity.
12. On the Centre of Gravity Envelope draw two horizontal lines corresponding to the Zero
Fuel Weight and the Take-off Weight. Then draw two vertical lines corresponding to the
Zero Fuel Centre of Gravity and the Take-off Centre of Gravity. If the intersection of the
Zero Fuel Weight with the Zero Fuel Centre of Gravity lines and the Take-off Weight with
the Take-off Centre of Gravity lines occur inside the envelope, the aircraft will remain within
the required Centre of Gravity limitations for all fuel states.
01 Aug 2011
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