Principles of Yacht Design (4th ed.)

Bok, 2013

The first edition of the Principles of Yacht Design was published in 1994. Since then there have been two new editions, and the book has been translated into German, Japanese and Korean. A special edition is published in the United States. The book has thus been very well received, and in this fourth edition we have kept the structure and the main contents of the previous editions. The basic idea is to cover all aspects of yacht design, from the specification, through the hydro- and aerodynamic design, structural assessment and layout, to the final evaluation. Emphasis is placed on concept descriptions, but formulae, separated from the text, are included in sufficient depth for a complete design of a new yacht. An important feature of the book is the example yacht, used throughout the book to exemplify the use of the formulae. This is where the present edition differs most from the previous ones. A completely new modern performance cruiser, the YD–41 has replaced the original YD-40, designed for the first edition. This has called for a revision of most of the figures and important parts of the text. In connection with the new design, the statistics found in the design chapters have been completely revised, and are now based on yachts designed during the past ten years. The primary designer of the new yacht is Michal Orych, who is now welcomed as the third author of the book. Since the first edition there have been regular updates particularly in two areas: hydrodynamic formulas based on the Delft systematic yacht hull series (DSYHS), and ISO standards for the safety and structural integrity of sailing yachts. The authors are indebted to Dr Lex Keuning, the manager of DSHYS, for his advice in this matter. The ISO 12217-2 seaworthiness standard was developed under the chairmanship of Andrew Blyth, and the ISO scantlings standard 12215 under the late Fritz Hartz and more recently Gregoire Dolto. Thanks are due to all of them for their support, and for their permission to use unpublished parts of the standards. In the present edition, new resistance formulae are presented from DSHYS, and the ISO 12215 standard has been updated with respect to rudders and appendages. Since the first edition there has been a dramatic development in Computational Fluid Dynamics (CFD), and this is reflected in the present edition, where a considerably expanded section in the last chapter is devoted to this exciting technique.