The CG limits of an aircraft are between 4.08 m and 4.32 m aft of the datum. The Take-Off Mass of an aircraft is 3195 kg and the calculated CG is at 4.35 m aft of the datum. If a mass of 84 kg can be moved, what is the distance the mass should be moved in order to get a CG at the aft limit?
Use the formula:
Mass Change / Total Mass = Change of CG / Distance
- Mass Change: 84 kg
- Total Mass: 3195 kg
- Change of CG: 4.35 m - 4.32 m = 0.03 m = 3 cm
- Distance: ?
84 kg / 3195 kg = 3 / Distance
Distance = (3195 kg x 3 cm) / 84 kg
Distance = 114 cm
The CG has to be moved forward (from 4.35 m aft of datum to 4.32 m aft of datum), so the mass must be moved 114 cm forward.
Your Notes (not visible to others)
This question has appeared on the real examination, you can find the related countries below.