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Refer to figure.
Given: Planned and actual data as shown in the Flight Log excerpt. Arriving overhead GAMMA you are cleared for direct routeing to MIKE. The flight time for direct flight GAMMA to MIKE will be 1 h 06 min.

Provided that flight conditions on the direct leg GAMMA to MIKE remain unchanged and fuel consumption remains unchanged, what fuel remaining should be expected at waypoint MIKE?

  • A
    1706 kg
  • B
    1036 kg
  • C
    1720 kg
  • D
    2644 kg
First Step: Calculate the actual fuel consumption BETA - GAMMA
  • Fuel consumed BETA - GAMMA = Actual Fuel remaining at BETA - Actual Fuel Remaining at GAMMA
  • 3120 kg – 2630 kg = 490 kg
  • Time BETA – GAMMA = 2:02 – 1:27 = 35 min
  • Fuel Consumption = 490 / 35 = 14 kg/min
Second Step: Calculate fuel consumed GAMMA - MIKE
TIME GAMMA - MIKE = 1 h 06 min = 66 min
Fuel consumed: 66 min x 14 kg/min = 924 kg
Third Step: Calculate Fuel remaining at MIKE
FUEL at MIKE = Actual Fuel over GAMMA - Fuel Consumed (GAMMA - MIKE)
FUEL at MIKE = 2630 kg – 924 kg = 1706 kg

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