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The Performance-Limited Take-Off Mass (PLTOM) is defined as the..

  • A

    maximum permissible total aeroplane mass at the start of the take-off run.

  • B

    maximum permissible mass of an aeroplane but excluding fuel.

  • C

    take-off mass subject to departure aerodrome limitations.

  • D

    mass subject to the landing aerodrome limitations.

Performance Limited Take-Off Mass (PLTOM) is the take-off mass subject to departure aerodrome limitations.

The PLTOM is the lowest of the Climb Limited Take-Off Mass (CLTOM), Obstacle Limited Take-Off Mass (OLTOM) and the Field-Length Limited Take-Off Mass (FLLTOM). The lowest mass of those is the most limiting factor.

Regulated Take-Off Mass (RTOM) is the lowest of the 'performance limited' and 'structural limited' take-off masses.

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