Electric propulsion is a growing market in the marine sector, this growth is mainly driven by commercial shipping due to space and economy benefits. However military applications are watching developments closely due to the inherently quiet nature of electric propulsion when compared to traditional methods. Therefore Rolls-Royce fine Electrical Systems are looking for a mechanism of providing quiet operations on a standard marine drive. The work undertaken within the thesis has shown the benefits and limitations of this highly data intensive torque table based controller.