31-05. DETERMINATION OF CG POSITION


Random 5 questions:
1. The planned Takeoff Mass of a turbojet aeroplane is 180.000 kg, with its centre of gravity located at 26% MAC (Mean Aerodynamic Cord). Shortly prior to engine start, the local staff informs the flight crew that 4.000 kg must be unloaded from cargo 4 (23,69 m aft of reference point). Given:
Distance from reference point to leading edge: 14 m
Length of MAC: 4,6 m
After the handling operation, the new centre of gravity location in % MAC will be?

2. If the loaded mass is 27.220 kg, how much load should be transferred 9,16 m forward from no. 2 hold to the no. 1 hold in order to move the centre of gravity of an aircraft from the out of limits value of 13 metres aft to the forward limits value of 11,6 metres aft?
3. An aircraft is loaded to a mass of 25.000 lbs. A passenger weighing 150 Ib moves back 10 seat rows, a distance of 330 inches. The centre of gravity will move:
4. Given:
Gross mass: 116.500 lbs
Present CG station: 435,0
Compartment A station: 285,5
Compartment B station: 792,5
If 390 lbs of cargo are moved from compartment B (aft) to compartment A (forward), what is the station number of the new centre of gravity (CG)?

5. Assume:
Aeroplane gross mass: 4.750 kg
Centre of gravity at station: 115,8
What will be the new position of the centre of gravity if 100 kg is moved from the station 30 to station 120?

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