Twin-engine aircraft e.g. drone, has spindle engine propeller, where aerodynamic thrust of blast air of propeller passes from vertical flight to horizontal flight by operating directional flap while cabin is not depend on rotation of flap

摘要

The aircraft has two spindle engine propellers, two wings and a cabin, where aerodynamic thrust of blast air of each propeller passes from an vertical flight to an horizontal flight by operating an directional flap while the cabin is not depend on rotation of the flap. The propeller resembles a cylinder whose cross-section is elliptical in shape so as to accommodate a portion of batteries, and is attached to the wing. The cabin is free to rotate about its pitch axis in the vertical flight and in the horizontal flight.