To provide an unmanned helicopter capable of satisfying receiving performance of an electric wave for actuation of a sprinkling device without giving influence to the receiving performance of an electric wave for operation of a frame body.

This unmanned helicopter 1 has the frame body 2 having a front body on which an engine to be a driving source of main rotors 15a, 15b, and a tail body 4 to extend toward the rear from a rear end part of this front body 3, and the front body 3 is furnished with the sprinkling device A. Additionally, the front body 3 is furnished with an antenna 50 for actuation of the sprinkling device to receive the electric wave for actuation of the sprinkling device, and the tail body 4 is furnished with an antenna 60 for operation of the frame body to receive the electric wave for operation of the frame body.

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