PURPOSE: An automatic take-off and landing system for a large-class unmanned airship is provided to easily perform a takeoff and a landing under the self decision. CONSTITUTION: An elevator(102), a rudder(103), and flight control surface actuators(104,107) for handling the large-class unmanned airship over 40m in size are mounted to a vertical tail(105) and a horizontal tail(106). An automatic take-off and landing system for a large-class unmanned airship comprises a propeller(108) generating a thrust; a tilting system for handling the thrust direction; a speedometer for measuring the speed; a GPS(Global Positioning System) receiver(110), a GPS antenna(111), and a laser altimeter(112) for taking the position and height information; and an inertial navigation sensor(113).
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