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The minimum sink rate is attained by flying at a relative airspeed of u/\(\sqrt[4]{3}\).(a) True(b) FalseThis question was posed to me during an online exam.I'm obligated to ask this question of Climb and Descent Performance with Thrust-Producing Engines in division Climb and Descent Performance of Aircraft Performance

Answer» RIGHT OPTION is (a) True

For EXPLANATION I would say: The minimum sink rate is attained by flying at a relative airspeed of u/\(\sqrt[4]{3}\). At this airspeed the minimum POWER speed of aircraft is attained. Flying at this speed will maximize the time of gliding flight.


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