An unmanned aerial vehicle (UAV) includes a central body, one or more propulsion units configured to propel the UAV through the air, and a carrier supported by the central body. The carrier is configured to support and permit a payload to move relative to the central body. The carrier includes a guide coupled to the central body and a gimbal configured to couple a payload to the guide. The gimbal is further configured to flip the payload above the carrier when the payload is at a top end of the guide relative to the central body.