porpoising


Also found in: Dictionary, Thesaurus.

porpoising

A condition in which the airplane bounces back and forth between the nose or tail wheel and the main gear after or near touchdown. It happens because of an incorrect landing technique and excessive air speed on final approach. The situation can worsen progressively and result in damage to the landing gear.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved