A maneuver in which an airplane is half looped to an upside-down position and then half rolled back to normal, upright flight: used to gain altitude while reversing direction.
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(military, aviation, archaic) A fighter pilot maneuver resembling the aerobaticwingover or hammer-head turn, originally developed by Max Immelmann.
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(aviation) The roll-off-the-top aerobatic maneuver, a reverse split-S.