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Basic Empty Mass is:
  • A
    the actual take-off mass minus traffic load.
  • B
    Dry Operating Mass minus fuel load.
  • C
    Dry Operating Mass minus traffic load.
  • D
    a component of Dry Operating Mass.

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.

Beside the BEM, DOM 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.

BEM is determined by the manufacturer, DOM is determined by the operator.

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