- The speed at which, for a given thrust from the operating engine, the rate of climb is zero. Also known as a zero rate of climb speed.
Aviation dictionary. 2014.
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V speeds — A single engine Cessna 150L s airspeed indicator indicating its V speeds. In aviation, V speeds are standard terms used to define airspeeds important or useful to the operation of all aircraft including fixed wing aircraft, gliders, autogiros,… … Wikipedia