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The Empty Mass of a helicopter shall be recorded in...

  • A
    The loading manifest. it differs from the zero fuel mass by the value of the 'traffic load.
  • B
    The loading manifest. It differs from dry operating mass by the value of the 'useful load'.
  • C
    The weighing schedule and is amended to take into account changes due to modifications of the aircraft.
  • D
    The weighing schedule. lf changes occur, due to modifications, the aircraft must not be re-weighed always.

The allowable centre-of-gravity (CG) range for a helicopter is determined by the helicopter manufacturer based on extensive testing and analysis during the design and certification process. The manufacturer determines the allowable CG range by considering a number of factors, including the helicopter's weight, balance, and performance characteristics.

During the certification process, the manufacturer conducts a series of flight tests to evaluate the helicopter's stability, controllability, and manoeuvrability under a range of conditions. These tests help the manufacturer to establish the safe and effective operating limits of the helicopter, including the allowable CG range.

Once the helicopter is certified, the allowable CG range, Basic Empty Mass and All Up Weight are typically documented in the helicopter's flight manual or other technical publications, such as the helicopter type certificate. If there are any modifications done to the helicopter there shall be an amendment of the weighing schedule of the helicopter.

It is important for pilots to understand and adhere to the allowable CG range in order to ensure safe and effective flight operations. Any deviation from the allowable CG range can affect the helicopter's stability, performance, and controllability, potentially leading to unsafe flight conditions.

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