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At the flight preparation stage, the following parameters in particular are available for determining the mass of the aircraft:

1- Dry Operating Mass
2- Operating Mass

Which statement is correct:

  • A
    The Dry Operating Mass includes special operational equipment needed to carry out a specific flight.
  • B
    The Dry Operating Mass includes take-off fuel.
  • C
    The Operating Mass is the mass of the aircraft without take-off fuel.
  • D
    The Operating Mass includes the traffic load.

Dry Operating Mass (DOM): It is the total mass of the aeroplane ready for a specific type of operation excluding usable fuel and traffic load.

The mass includes items such as:

1- Crew and crew baggage.
2- Catering and removable passenger service equipment.
3- Potable water and lavatory chemicals.
4- Food and beverages.

DOM = Basic Mass + Operational equipment needed to carry out a specific flight.

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