#$%^&*AU2017100933A420170803.pdf#####ABSTRACT The present disclosure discloses an unmanned aerial vehicle (UAV), comprising a housing (1) having a top part and a bottom part, a plurality of arms arranged on the top part, each arm having a motor and an airscrew, a battery unit arranged within the housing, a processor arranged within the housing, a sonar unit (2) having a wire connected thereto, and a positioning unit (5) detachably mounted within a mounting groove recessed from the bottom part, wherein the positioning unit is connected to the wire and configured to retract or release the wire. An UAV readily configured for fishing can be provided by embodiments of the present disclosure. Fig. 21/10 Flying the UAV to a designated destination Adjusting the sonar unit to a predetermined height Using the sonar unit to detect signals and determine a fishing region Using the launching unit to launch bait to the fishing region Using the fishhook unit to release a fishhook to the fishing region Manipulating the UAV to hover or return FIG 1
