 The elevation system consists of a hydraulic cylinder which provides the power for both elevation drive and corrects the out-of-balance movement of the elevating mass, should there be any deviation of the gun elevation selected after the firing of a round, a compensator re-establishes the correct elevation angle, thereby allowing a high rate of accurate fire to be achieved automatically.Conventional power traverse is fitted, and there is a manual backup for both traverse and elevation should the power fail.The internal ballistics of the FH70 howitzer meet the requirements of the Quadrilateral Ballistics Memorandum of Understanding; i.e., all charges may be used and current and future 155 mm projectiles can be fired.