Geoff Roberts is Emeritus Professor of Mechatronics at the University of Wales and Visiting Professor of Mechatronic Systems at Coventry University. He is a member of the IFAC Technical Committee on Marine Systems and a member of the IFAC Technical Committee on Mechatronic Systems.Robert Sutton is currently a Professor of Control Systems Engineering in the School of Marine Science and Engineering at Plymouth University. In addition, he is a member of the International Federation of Automatic Control Technical Committee on Marine Systems and the Society for Underwater Technology Underwater Robotics Group Committee.