2 / 20

Determine the maximum permitted Take-Off Mass (TOM), given the fuel load below:

Maximum structural take-off mass: 48 000 kg
Maximum structural landing mass: 44 000 kg
Maximum zero fuel mass: 36 000 kg
Taxi fuel: 600 kg
Contingency fuel: 900 kg
Alternate fuel: 800 kg
Final reserve fuel: 1100 kg
Trip fuel: 9000 kg

  • A
    48 400 kg
  • B
    47 800 kg
  • C
    48 000 kg
  • D
    53 000 kg

The Maximum allowed Take-Off Mass will be the lowest of:

  • Maximum structural take-off mass; or
  • Maximum Zero Fuel Mass plus take-off fuel; or
  • Maximum Landing Mass plus trip Fuel.
Maximum structural take-off mass48 000 kg
Maximum zero fuel mass (MZFM) + Trip Fuel + Contingency Fuel + Alternate Fuel + Final Reserve Fuel36 000 kg + 9000 kg + 900 kg + 800 kg + 1100 kg = 47 800 kg
Maximum structural landing mass + Trip Fuel44 000 kg + 9000 kg = 53 000 kg


As you can see, the take-off mass is limited by MZFM, since it gives the most limiting value of 47 800 kg (Maximum Take-off Mass for this flight).

Your Notes (not visible to others)



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

  • Poland
    3
  • United Kingdom
    3
  • Austro Control
    2
  • Czech Republic
    1
  • Greece
    1
  • Hong Kong
    1
  • Spain
    1
Keyboard Shortcut Use Keyboard Shortcuts