Zoom climb

Flight maneuver where a plane pitches to attain high upward speed beyond engine capability

A zoom climb or an unrestricted climb is a maneuver in which the rate of climb is greater than the maximum climb rate using only the thrust of the aircraft's engines. The additional climb rate is attained by reduction of horizontal speed. Before a zoom climb, the aircraft accelerates to a high air speed at an altitude at which it can operate in sustained level flight. The pilot then pulls steeply upward, trading the kinetic energy of forward motion for altitude. This is different from a steady climb, where the increase in potential energy comes from mechanical work done by the engines.

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