A sail plane with a lift-to-drag ratio

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Reference no: EM13720633

A sail plane with a lift-to-drag ratio of 25 flies with a speed of 50 mph. It maintains or increases its altitude by flying in thermals, columns of vertically rising air produced by buoyancy effects of no uniformly heated air. What vertical airspeed is needed if the sail plane is to maintain a constant altitude?

Reference no: EM13720633

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