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An aeroplane certified with manual controls has its maximum speed limited partly by

  • A.The stall speed in the landing configuration
  • B.The trim tab range available
  • C.The stick forces reaching the certification limits
  • D.The flutter speed of the wing alone

Answer: C

Manual control forces grow with the square of speed, so at some point they reach the certification limits and the aeroplane cannot be manoeuvred as required, which is a genuine limitation on the maximum operating speed. Flutter is also a limit, and a harder one, but the question asks what stick forces contribute. Stall speed sets the bottom of the envelope. Tab range limits trimming rather than manoeuvring.

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