RICHARD P. DE KERBRECH's marine engineering apprenticeship was with Shaw Savill & Albion Co. and Cammell Laird shipyard. Later an inspector with the Naval Overseeing service, he went on to lecture in mechanical engineering. He's a life member of the World Ship Society and a member of The Royal Institution of Naval Architects. DAVID L. WILLIAMS is a commercial & industrial photographer and author, previously responsible for the aircraft and hovercraft inservice support operation of Westland Aerospace. He spent time working aboard lighthouse tenders and cable layers and is an Associate of the British Institute of Professional Photographers and member of the World Ship Society.