LY-TK40, vertical takeoff and landing fixed wing, is one type of fully independently developed aircraft by Longyi Aviation, made of 100% carbon fiber, with high strength and small deformation, which can freely cope with situations in poor weather. It has Larger load capacity and longer life time in industrial applications, fully adopts modular design , which can be finished assembly job in a few minutes, easy to transport, and can be widely used in film and television aerial photography, aerial reconnaissance,antiterrorism,forensics,geological surveying, remote sensing mapping, communications relay, environmental protection,meteorological exploration, disaster monitoring, aerial surveying, publicire security, and other industries as well as fields.