1 / 20
When exceeding the forward centre of gravity (CG) limit will result in the helicopter being:
  • A
    Nose heavy and the pilot may run out of forward cyclic.
  • B
    Nose heavy and the pilot may run out of aft cyclic.
  • C
    Tail heavy and the pilot may run out of aft cyclic.
  • D
    Tail heavy and the pilot may run out of forward cyclic.

Refer to figure.
A forward CG may occur when a heavy pilot and passenger take off without baggage or proper ballast located aft of the rotor mast. This situation worsens if the fuel tanks are located aft of the rotor mast, because as fuel burns the weight located aft of the rotor mast becomes less.

To recognize this condition, in a hover with no-wind conditions you will experience a nose down attitude leading to excessive rearward cyclic displacement.

This situation is hazardous and flight should not be continued:

  • Because it might be impossible to decelerate sufficiently to bring the helicopter to a stop.
  • In the event of an engine failure and resulting in autorotation, you may not have enough cyclic control to flare properly for the landing.

NOTE:
A forward CG will not be as obvious when hovering into a strong wind due to rearward cyclic displacement required is less than hovering in no-wind conditions.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

  • Greece
    1
  • Pakistan
    1
Keyboard Shortcut Use Keyboard Shortcuts