SEP 2012 R66 Maintenance Manual Chapter 8 Weight and Balance Page 8.7
8-22 Weighing Procedure and Calculations
NOTE
• Arm is the distance in inches from datum.
• Datum is located 100 inches forward of main rotor centerline.
• CG (arm) is determined by dividing total moment by total weight.
1. Refer to Section 8-20. Prepare helicopter for weighing per Section 8-21.
2. Refer to Figure 8-3. Place a jack and one 1000-lb capacity (minimum) scale under each
(landing gear) aft strut assembly jack lug/tab and under the ground handling ball.
3. Zero scales, or record tare weight (items between scale and weighing point such as
adapter, jack, stand, sandbags, etc.) at each scale.
4. Level helicopter for weight and balance per Sections 8-10 and 8-11. Remove spirit
level. If removed, carefully replace F463-1 aft tunnel cover, unsecured, on top of keel
panels.
5. Calculate net weights:
Weighing Point Scale Indication Tare Weight Net Weight
Forward: – = lb
Left: – = lb
Right: – = lb
To Next Page
Loading...