For pre-flight planning purposes, what is the minimum Usable Fuel required for the Commercial Air Transport flight, given the following information? Assume the Basic Fuel Scheme WITHOUT variations applies.
Estimated taxi time: 13 minutes
APU fuel flow: 115 kg/h
Taxi fuel flow: 11 kg/min
Sum of Trip Fuel and Contingency Fuel: 5 420 kg
Destination Alternate Fuel: 1 400 kg
Final Reserve Fuel: 1 250 kg
Extra Fuel: 0 kg
Discretionary Fuel: 0 kg
Estimated length of time of APU use: 38 minutes
IMPORTANT NOTE: The modifications resulting from the updated fuel policy regulations, which came into effect on October 30, 2022, are only changes in wording but nothing really new. The terminology "extra fuel" has been replaced with "discretionary fuel." EASA has clarified that the calculations and procedures pertaining to fuel calculations will remain unchanged, and there will be no new questions regarding the new "extra fuel" concept.
- extra fuel, include anticipated delays or specific operational constraints that can be predicted
- discretionary fuel, include a quantity at the sole discretion of the commander
For reference, additional information can be found in EASA's AIR OPS documentation.
APU Run time = 38 min
APU Fuel flow = 115 kg/hr = 1.9 kg/min
38 x 1.9 = 73 kg
Taxi Fuel Flow = 11 kg
Taxi Time = 13 min
13 x 11 = 143 kg
Trip Fuel incl Cont. fuel = 5420 kg
Alternate Fuel = 1400 kg
Final Reserve Fuel = 1250 kg
No mention of any additional fuel
Add totals
73 + 143 + 5420 + 1400 + 1250 = 8286 kg
Your Notes (not visible to others)
This question has appeared on the real examination, you can find the related countries below.
-
Greece3
-
Ireland2
-
Poland2
-
Austro Control1
-
Italy1
Use Keyboard Shortcuts
