31-05. (H) DETERMINATION OF CG POSITION
All questions: 33
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1. An aeroplane has 2 cargo holds, cargo hold 1 is located 6 m forward of the datum, hold 2 is located 7 m aft of the datum. The Takeoff Mass of the aircraft is 60.000 kg and the CG is located at 2 m aft of datum. Just prior to takeoff, cargo weighing 1.250 kg is removed from cargo hold 1, what will be the new CG for takeoff?
2. Given:
CG is located at STN 15 Aeroplane mass is 3.650 lbs
What is the effect on the CG if you move baggage (total mass 64 lbs) from STN 14 to STN 20?
3. Given the following information, how much mass (to the nearest Ib) has to be transferred from the front hold, the centroid of which is 20 ft forward of the datum, to the rear hold 40 ft aft of the datum to bring the centre of gravity within limits?
Aircraft mass: 2.500 lbs
Total moment: -8.000 lbs/ft
Centre of gravity range from 0,5 ft to 2,0 ft fwd of datum
4. Calculate the position of the centre of gravity for takeoff and landing from the following information: Maximum Takeoff Mass: 3.400 kg Maximum Landing Mass: 3.000 kg Burn off: 300 kg fuel and 5 kg oil Centre of gravity range: 2,5 to 3,5 m aft STATION MASS (kg) ARM (m) MOMENT Basic Mass 2.000 2,25 aft +4.500 Fuel 500 3,5 aft +1.750 Oil 20 9fwd -180 Crew 150 3,75 fwd -562,5 Passengers 340 4 aft +1.360 Baggage 260 Waft +2.600
5. 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?
