Systems, including apparatus and methods, for driving airflow along a surface of a gimbal. The systems may comprise a gimbal apparatus including a payload and also including a gimbal mount supporting a first gimbal and a second gimbal. The first gimbal may be coupled pivotally to the gimbal mount. The second gimbal may be coupled pivotally to and supported by the first gimbal. The second gimbal may be coupled to and may support the payload. The gimbal apparatus may orient the payload by pivotal movement of the first and second gimbals relative to the gimbal mount about at least two nonparallel axes. The system also may comprise a fan mounted to the first gimbal. The systems also may comprise operating the fan to drive airflow through a gap disposed between the first and second gimbals.