The invention belongs to the technical field of
aviation engineering, and particularly discloses a take-off device for an ornithopter. The take-off device comprises a transverse cable, two
pulley components, and two drum components driven by outer rotor motors; the two
pulley components and the two drum components are arranged in symmetry relative an airport
runway; the transverse cable is sequentially wound around one drum component, the fixed
pulley component on the same side, the fixed pulley component on the opposite side and the other drum component on the opposite side. The transverse cable crosses the airport
runway, and the drum components are driven by the outer rotor motors. During take-off, the transverse cable is pulled by a
towing vehicle to be hung on a padlock mechanism at the front end of the ornithopter, an ornithopter engine and the outer rotor motors are cooperatively started to assist the take-off, and the outer rotor motors help provide the initial speed of the ornithopter, so that the stability of the ornithopter is enhanced, the sliding distance of the ornithopter is shortened, and an ornithopter
runway is shortened; by the design of the pulley components, the take-off direction can be selected according to the actual
wind direction; through
electric power assisted dragging, the fuel consumption is reduced, and the surrounding environmental
pollution of an airport is reduced.