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Refer to figure.
Using the annex, determine the CG position and the moment at Basic Empty Mass. The CG position is...
  • A
    116.2 in aft of datum and the moment is 362 876 in.lb.
  • B
    117.1 in aft of datum and the moment is 365 820 in.lb.
  • C
    112.7 in aft of datum and the moment is 351 950 in.lb.
  • D
    156.7 in aft of datum and the moment is 489666 in.lb.
Refer to figure.
As we have the arm and moment for ZFM, we can determine the moment:
ZFM moment = 3759 x 113.4 = 426271
We determine moments for baggage zone1, passengers, pilot and front passenger, then deduct those moments from ZFM moment.
BEM moment = 426271 —1265 — 45030 — 17100 = 362876
To get the CG location = moment / mass = 362876 / 3124 = 116.15 ( positive number means aft of datum).

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