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(For this question use annex 033-043 and 033-055 rev. 05.11.2004).
The flight crew of a turbojet aeroplane prepares a flight using the following data:

Flight leg distance: 3 500 NM
Flight level FL 310
True airspeed: 450 kt
Headwind component at this level: 5 kt
Initially planned take-off mass (without extra fuel on board): 180 000 kg
Fuel price: 0.35 $/l at departure 0.315 $/l at destination

To maximize savings, the optimum quantity of fuel which should be carried in addition to the prescribed quantity is:

  • A
    22 000 kg
  • B
    The fuel transport operation is not recommended in this case.
  • C
    15 000 kg
  • D
    8 000 kg
Fuel tankering is a practice whereby an aircraft carries more fuel than required for its next flight (trip fuel + reserve) in order to reduce or avoid refuelling at the destination airport.
  • Tankering will be considered if the cost of fuel at destination is higher than at the departure aerodrome.
In this case, no calculations are needed. At departure aerodrome: Fuel price: 0.35 $/l and at destination: 0.315 $/l => Fuel is cheaper at the destination, therefore, tankering makes no sense.

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