takeoff
phase of flight in which a vehicle leaves contact with the land or water surface
Holden's Lightning flight
unintended aircraft takeoff
space launch
earliest phase of a flight that reaches space
rejected takeoff
aviation action, usually in an emergency
winch launch
method for launching a glider
aerotow
launch of a glider by towing it with an aeroplane
assisted take off
system used to help aircraft get into the air