THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM

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1 THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM JANUARY 28, 1995 THE CHESAPEAKE SECTION OF THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS U.S. NAVAL ACADEMY SAILING SQUADRON THE CHESAPEAKE BAY YACHT RACING ASSOCIATION

2 ^^^0^ THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM TABLE OF CONTENTS Papers Presented on Saturday, January 28, 1995 Scoring IMS Regattas - An Empirical Study of Alternative Methods John W. Cane, ENW Intemational, Ltd., St. Michaels, Maryland, USA 1 Drawing with Performance Prediction Peter Schwenn, Velocity, University Park, Maryland, USA George Hazen, gshell, Inc., Annapolis, Maryland, USA 15 Design Criteria for Composite Masts Paul Miller, Dept. of Naval Arch. & Offshore Eng., U. C, Berkeley, CA, USA 29 The Development of the B&R Rig, Structural Space Frame and Tripod Support System with Integrated Boom Lars Bergstrom, B&R Mast and Rigging Designs, Sarasota, Florida, USA Sven Olof Ridder, B&R Mast and Rigging Designs, Sarasota, Florida, USA 45 The Alexandria Class Dinghy - A Design For Change William H. Hunley, The Alexandria Seaport Foundation, Alexandria, Virginia, USA 53 Design, Construction, and Performance of a 27' MORC Boat Brian A. Jones, Annapolis, Maryland, USA 63 Imagine - an Open Class 60 BOC Racer - Design and Program Managenient - Lessons Learned Kenneth E. Court, P.E., Kaufman Design, Inc., Annapolis, Maryland, USA F. Michael Kaufman HI, Kaufman Design, Inc., Annapolis, Maryland, USA Harold M. Whitacre III, Kaufman Design, Inc., Annapolis, Maryland, USA 69 Note: A presentation titled "Progress Report on the Schooner Sail Coefficient Program Utilizing the Yacht Brilliant as a Dynamometer" was given by Walter Stubner, Olin J. Stephens, II, and Paul Spens. Moderators for the 12th CSYS i

3 THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM TABLE OF CONTENTS Papers Presented on Friday, January 27, 1995 at the SNAME SC-2 "Sailing Craft" Panel Meeting The Design of Yacht Sailplans for Maximal Upwind Speed Dr. Sandy Day, University of Stratliclyde, Scotland 97 Tacking Simulation of Sailing Yachts - Numerical Integration of Equations of Motion and Application of Neural Network Technique Yutaka Masayuma, Kanazawa Institute of Technology, Ishikawa, Japan Toichi Fukasawa, Kanazawa Institute of Technology, Ishikawa, Japan Hiroshi Sasagawa, Dengyousha Machine Works, Ltd., Shizuoka, Japan 117 Wing - Body Interaction on a Sailing Yacht Prof, ir. J. A. Keuning, Ship Hydromechanics Lab., Delft Univ. of Tech., Delft, The Netherlands Ir. G. K. Kapsenberg, MARIN, Wageningen, The Netherlands 133 Improvement of Sailing Yacht Performance Prediction by Including Force-Moment Equilibrium for the Calculation of Helm Angle in a Velocity Prediction Program Dr. Peter van Oossanen, Van Oossanen & Associates, Wageningen, The Netherlands YACHT97: A Fully Viscous NonUnear Free-Surface Analysis Tool for lacc Yacht Design J. Farmer, Dept. of Mech. and Aerospace Eng., Princeton Univ., Princeton, NJ, USA L. Martinelli, Dept. of Mech. and Aerospace Eng., Princeton Univ., Princeton, NJ, USA A. Jameson, Dept. of Mech. and Aerospace Eng., Princeton Univ., Princeton, NJ, USA Bibliography of Previous Chesapeake Saihng Yacht Symposia Papers ii

4 12th CSYS Committee Members Steering Committee Joseph O Salsich General Chariman John J. Zseleczky Papers Committee Chairman Volker Stammnitz Publicity Sarah L. Gretzky Arrangements Howard A. Chatterton Treasurer Jacqueline C. Diggs Assistant Treasurer Gregory Buley Secretary LCdr. Stephen R. Judson, USCG SNAME Representative Bruce Johnson CBYRA Representative Robert E. Carruthers NASS Representative Richards T. Miller Advisor Robert W. Peach Advisor C. Gaither Scott Advisor Ronald L. Ward Advisor Papers Committee Diane Burton David A, Helgerson LCdr. Stephen R. Judson, USCG Andrew R. Kondracki Gregory J. Opas J. Otto Scherer John J. Slager iii

5 THE TWELFTH CHESAPEAKE SAILING YACHT SYMPOSIUM The Twelfth Chesapeake Sailing Yacht Symposium was co-sponsored by: The Society of Naval Architects and Marine Engineers, 601 Pavonia Avenue, Jersey City, NJ The Chesapeake Bay Yacht Racing Associaüon, 612 Third Street, Annapolis, MD The U.S. Naval Academy Sailing Squadron, The Robert Crown Sailing Center, U.S.N.A., Annapolis, MD The Twelfth CSYS was held in the Francis Scott Key Auditorium on the campus of St. John's College in Annapolis, Maryland, USA. The SNAME SC-2 "Sailing Craft" Panel meeüng was open to all CSYS attendees and was held in conference room 103, Rickover Hall, U.S. Naval Academy, Annapolis, Maryland, USA. Copyright 1995 by The Society of Naval Architects and Marine Engineers iv

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