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Refer to figure.
Using the information in the Flight Log extract, calculate the actual fuel used from ALPHA to DELTA.The flight conditions on the leg CHARLIE to DELTA and the fuel consumption remain unchanged.

  • A
    9.2 US gal
  • B
    14.5 US gal
  • C
    7.0 US gal
  • D
    18.2 US gal
1) Calculate the actual fuel consumption: (from ALPHA to CHARLIE)

52.1 - 44.6 = 7.5 US gallons

2) Determine the current burning rate: (from BRAVO to CHARLIE)

2.1) Determine the fuel burnt from Bravo to Charlie:
48.4 - 44.6 = 3.8 US gallons

2.2) Compute the Actual Time of Arrival (ATA): (from BRAVO to CHARLIE)

9:02 - 8:34 = 28 minutes (0.47 h)

2.3) Calculate the fuel consumption rate per minute: (from BRAVO to CHARLIE)

3.8 US gallons ÷ 28 minutes = 0.1357, rounded to 0.136 US gallons per minute

3) Find the Estimated Time of Arrival (ETA): (from CHARLIE to DELTA)

9:53 - 9:02 = 51 minutes (0.85 h)

6) Determine the fuel consumption: (from CHARLIE to DELTA)

0.136 US gallons per minute x 51 minutes = 6.936 US gallons

7) Sum up the fuel consumption rate and actual fuel used:

6.936 + 7.5 = 14.436, rounded to 14.5 US gallons

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