2.  Determine the distance between the CG and the datum  by adding the CG in inches aft of LEMAC to the  distance from the datum to LEMAC.  [Figure 9-13] 6.  Determine the location of the new CG by dividing  the total moment/1,000 by the total weight and  multiplying this by the reduction factor of 1,000.  [Figure 9-17] 7.  Convert the new CG location to percent MAC. First,  determine the distance between the CG location and  LEMAC.  [Figure 9-18] 3.  Determine the moment/1,000 for the original weight.  [Figure 9-14] 4.  Determine the new weight and new CG by first  determining the moment/1,000 of the removed weight.  Multiply the weight removed (2,500 pounds) by the  centroid of the forward cargo hold (352.1 inches), and  then divide the result by 1,000.  [Figure 9-15] 8.  Then, determine the new CG in percent MAC.  [Figure 9-19] 5.  Subtract the removed weight from the original weight  and subtract the moment/1,000 of the removed weight  from the original moment/1,000.  [Figure 9-16] Figure 9-16.  New weights and CG. Figure 9-15.  Determining the moment/1,000 of the removed weight. Figure 9-19.  Determining the new CG in percent MAC. Figure 9-18.  Determining the distance between the CG and LEMAC. Figure 9-14.  Determining the moment/1,000 for the original weight. Figure 9-17.  Determining the location of new CG. Figure 9-13.  Determining the distance between CG and the datum. 9-7 Loading 3,000 pounds of cargo into the forward cargo hold  moves the CG forward 5.51 inches, from 27.12 percent MAC  to 21.59 percent MAC. Weight (lb) Moment/1,000 CG (inches from datum) CG (percent MAC) 580.97 587.51 22.5 27.12 Original data  Changes New data 90,000 – 2,500 87,500 52,287.3 – 880.3 51,407.0 CG (inches from datum) = CG inches aft of LEMAC + Datum to LEMAC = 580.97 inches = 31.84 + 549.13 CG = × 1,000 Total moment/1,000 Total weight 51,407.0 87,500 = × 1,000 = 587.51 inches behind the datum Moment/1,000 = Weight × Arm 1,000 90,000 × 580.97 1,000 = 52,287.3 = CG (inches aft of LEMAC) = CG (inches from datum) – LEMAC = 38.38 inches = 587.51 – 549.13 ( ) CG % MAC = × 100 Distance CG to LEMA MAC ( ) = × 100 38.38 141.5 = 27.12% MAC Moment/1,000 = Weight × Arm 1,000 2,500 × 352.1 1,000 = 880.25 =