Arm (CG) = Moment / Weight
To nearest 2 decimal places
Starting: 10.86 = 15481 / 1425
Kit you're removing:
-56 * -61.3 = 3432.8
-4 * -62.2 = 248.8
After removal:
Weight = 1425 + (-56) + (-4) = 1365
Moment = 15481 + 3432.8 + 248.8 = 19162.6
CG (Arm) = 19162.6 / 1365 = 14.04
Kit you're adding:
52 * -61.3 = -3187.6
2 * -62.2 = -124.4
After adding:
Weight = 1365 + 52 + 2 = 1419
Moment = 19162 + (-3187.6) + (-124.4) = 15850.6
CG (Arm) = 15850.6 / 1419 = 11.17
New Empty Weight: 1419, CG: 11.17, Moment: 15850.6
PLEASE get someone else to verify these before trusting them when doing W&B calculations before flight.
OC619
Edited to add:
This seems reasonable because if you're removing weight with a negative ARM then the result would be to make the ARM more positive
Last edited by OpenCirrus619; 20th Jul 2016 at 17:13.
Reason: To add