6 / 20

When requiring excessive amount of aft and right cyclic while hovering may indicate that the centre of gravity (CG) is:

  • A
    Too far forward and laterally too far to the left.
  • B
    Too far forward and laterally too far to the right.
  • C
    Too far aft and laterally too far to the right.
  • D
    Too far aft and laterally too far to the left.

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.

Lateral CG limits can be restrictive particularly on light helicopters. Solo pilot operations may require seat interchange depending on fuel tank location and load. Lack of lateral cyclic control can lead to the same problems encountered with excessive forward and aft CG.

When excessive aft and right cyclic inputs are used this is to counteract forward CG and laterally left CG position.


NOTE:
For cyclic position and CG limits, a good rule of thumb is that cyclic correction is opposite of CG position, both laterally and longitudinally.

Your Notes (not visible to others)



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