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Certification requirements place limits on stick force per g from

  • A.Above only, so that it can always be manoeuvred
  • B.Neither, since it is a handling preference
  • C.Both directions, a minimum and a maximum
  • D.Below only, so that the aeroplane cannot be overstressed

Answer: C

Both bounds are imposed: a minimum so the aeroplane cannot be overstressed by an inadvertent pull, and a maximum so a pilot of average strength can achieve the required load factor. That two-sided constraint is why bobweights and balance devices are tuned rather than simply minimised. Limiting only the low side would permit a control so heavy the aeroplane could not be manoeuvred, and limiting only the high side would permit one dangerously light.

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