Whifferdill turn
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A whifferdill turn[1] turn (also wolferdil or whiferdill) refers to any number of fancy aerobatic maneuvers performed in an aerial flight show or while flying aggressively. It is a turn with both horizontal and vertical components, usually performed at the end of one maneuver in preparation for the next. As the plane is climbing the pilot makes a turn reversal, and as the plane descends it is turned so that it can make its next maneuver.
Pilots often use the term as slang for any multi-axis movement.