A treasure trove of invaluable information for boatowners, designers, builders, surveyors, chandlers and anyone maintaining their own boat. Thoroughly updated for this eighth edition, this book is packed with tables of lengths, widths, weights and strengths as well as new data on a vast range of equipment from anchors to masts, propellers to gas cylinders, cleat sizes to winch bases, and hatches to bolts, bearings, cabling and piping. If you want to know what size winch to fit, the breaking strength of stainless steel rigging wire, the recommended size for seacocks or what length and size an anchor chain should be, then this is the book for you.The Boat Data Book is a must-have reference for owners and professionals.