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Your fuel flow is 17 US gallons/ hour and your fuel quantity is 45 imperial gallons, what is your endurance?
  • A
    4 hrs
  • B
    3 hrs 11 mins
  • C
    3 hrs 06 mins
  • D
    3 hrs 20 mins

With the conversion side of the flight computer set 45 imperial gallons against the index mark and read 55 us gallons against the respective index mark.

Fuel consumption is given in gallons per hour:

17 (us gallons/hour) = 55 (us gallons) / endurance (h)
Endurance = 55 / 17 = 3º14’

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