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The left-hand boundary of the manoeuvre envelope, below the corner speed, is set by

  • A.The maximum permitted dive speed
  • B.The engine thrust available
  • C.The aerodynamic stall of the wing
  • D.The structural limit of the wing

Answer: C

Below the corner speed the wing cannot generate enough lift to reach the limit load factor, so it stalls first and the boundary is a parabola. Above that speed the structure becomes the limiting factor and the boundary is a horizontal line.

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