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A pilot chooses to fly faster or slower than the optimum range speed in a glide. What is a possible reason for this?
  • A
    Flying faster than optimum range speed in a strong tailwind sometimes increases range achieved.
  • B
    Flying slower than optimum range speed in a strong tailwind sometimes increases range achieved.
  • C
    Flying slower than optimum range speed will get the aircraft safely on the ground more quickly.
  • D
    Flying slower than optimum range speed increases speed stability.

The optimum glide speed to maximise gliding distance (to minimise glide angle) changes if there is wind. Since we are primarily interested in glide distance relative to the ground, we need to optimise glide angle and range relative to the ground. In case of tailwind, we need to reduce our airspeed to obtain the maximum gliding distance compared to the ground.

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