18 / 20

Refer to figure.
An aircraft is flying a commercial air transport route and making fuel checks at positions TESGA and BABIT. Referring to the data from these checks, what is the total fuel consumption from TESGA to BABIT and the average fuel flow (FF)?

  • A
    3.3 t and 3140 kg/h.
  • B
    3.3 t and 2700 kg/h.
  • C
    4.2 t and 3140 kg/h.
  • D
    4.2 t and 4000 kg/h.

Refer to figure.

Note that actual figures must be used - Actual time overhead (ATO) and Actual fuel on board (AFOB) and not estimated times.

  • Calculate the actual flight time between TESGA - BABIT:
Flight time TESGA - BABIT = Actual time overhead BABIT - Actual time overhead TESGA
Flight time TESGA - BABIT = 24 h 51 - 23 h 48 = 1 h 3 min
  • (1) Calculate the actual fuel burnt and fuel consumption: TESGA - BABIT

Fuel consumed TESGA - BABIT = Fuel onboard at TESGA - Fuel onboard at BABIT
Fuel consumed TESGA - BABIT = 12.3 t - 9 t
Fuel consumed TESGA - BABIT = 3.3 t

Fuel Consumption = 3.3 t / 1 h 3 min = 3.14 t/h

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.