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Given an aeroplane with:

Maximum Structural Landing Mass: 125 000 kg
Maximum Zero Fuel Mass: 108 500 kg
Maximum Structural Take-off Mass: 155 000 kg
Dry Operating Mass: 82000 kg
Scheduled trip fuel: 17000 kg
Reserve fuel: 5000 kg

Assuming performance limitations are not restricting, the maximum permitted take-off mass and maximum traffic load are respectively:

  • A
    130 500 kg and 26500 kg.
  • B
    130 500 kg and 31500 kg.
  • C
    125 500 kg and 26500 kg.
  • D
    125 500 kg and 21500 kg.

To get the takeoff mass will be smallest of:

1- MSTOM: 155000 kg
2- MLM + trip fuel (as trip fuel will be consumed during the flight): 125000 + 17000 = 142000 kg
3- MZFM + total fuel = 108500 + 17000 + 5000 = 130500 kg (smallest number)

Maximum traffic load = Takeoff mass — (Dry operating mass + Fuel onboard)
Maximum traffic load = 130500 — (82000 + 17000 + 5000) = 26500 kg

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