as used herein, means any intentional airplane maneuver or stunt not necessary to air navigation, or operation of aircraft in such manner as to endanger human life or safety by the performance of unusual or dangerous maneuvers.
as used in this chapter, means any airplane, gas bag, flying machine, balloon, or any contrivance now known or hereafter invented, used or designated for navigation of flight in air, except a parachute or other contrivance used primarily as safety equipment.
(Ord. 13177 § 1, 1947-08-20)