Helicopter Height-Velocity Diagram and Autorotation Safety - Shawn Coyle

Whether you walk away from a landing after an helicopter engine failure or not depends on many things but one good predictor is the Height Velocity(H/V) diagram. The H/V diagram (also known as H/V curve and dead man’s curve) represents combinations of airspeeds and altitudes that have been determined for that helicopter type where it …

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