Richard P. de Kerbrech BSc, Cert Ed, I Eng, served his marine engineering apprenticeship with Shaw, Savill & Albion shipping company. He was an inspector at the Admiralty Marine Engineering Establishment before becoming a lecturer in Mechanical and Production Engineering. He is the author of more than twelve books on maritime history. He lives on the Isle of Wight. David Hutchings I Eng, MRINA, served his shipwright apprenticeship in the Royal Dockyard at Portsmouth. He followed a career as a draughtsman, weights engineer, and technical librarian in the Royal Dockyard, at the Admiralty Experimental Works, Haslar, with Vosper International and Marconi Underwater Systems, and finally with Vosper Thornycroft. He is the author of nine books on maritime history and lives in Lee-on-The-Solent.

Richard P. de Kerbrech BSc, Cert Ed, I Eng, served his marine engineering apprenticeship with Shaw, Savill & Albion shipping company. He was an inspector at the Admiralty Marine Engineering Establishment before becoming a lecturer in Mechanical and Production Engineering. He is the author of more than twelve books on maritime history. He lives on the Isle of Wight. David Hutchings I Eng, MRINA, served his shipwright apprenticeship in the Royal Dockyard at Portsmouth. He followed a career as a draughtsman, weights engineer, and technical librarian in the Royal Dockyard, at the Admiralty Experimental Works, Haslar, with Vosper International and Marconi Underwater Systems, and finally with Vosper Thornycroft. He is the author of nine books on maritime history and lives in Lee-on-The-Solent.