Abstract: An angular acceleration aided system for electrooptical tracking of a designated target which operates independently of an inertial navigation system. The designated target point, as viewed by a gimbaled electro-optical sensor is portrayed on a video display where a human operator compensates for deviation in the tracking beam from the line-of-sight to the target by providing a rate command signal to the azimuth axis servo of the gimbaled sensor through a parallel combination of an integrator and an amplifier and, also, by providing a rate command signal to the elevation axis servo of the gimbaled sensor through a parallel combination of an amplifier and an integrator provided with a feedback circuit which establishes an acceleration aiding signal for the elevation axis.