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Which of the following will be the effects on the performance of a helicopter, when operating at the MTOM?

1. Decreased hover OGE height
2. Increased range
3. Increased take-off distance
4. Increased landing distance
5. Increased rate of climb

  • A

    2, 3, and 5

  • B

    1, 2, and 3

  • C

    2, 4, and 5

  • D

    1, 3, and 4

Helicopter performance can be described as the difference the power required and the power available, both of which vary with ambient conditions and all up weight.

When a helicopter operates at the MTOM, then:

  • The acceleration will be reduced.
  • The Take-off and safety speeds will be increased.
  • The Take-off and landing distances will be increased.
  • The climb capability and ceiling will be reduced.
  • The range and endurance will be reduced.
  • The manoeuvrability and power margins will be reduced.
  • The retreating blade stall will occur at a lower IAS.
  • The autorotation capability will be reduced with possible inability to flare.

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