US Sailing and the Institute for Marine Dynamics (IMD) in St. John’s, Newfoundland, are collaborating in a joint research program to investigate the effects of hull shape variations on hydrodynamic drag. The results of this program are being used to support the development of rules that handicap racing yachts. A fleet of 9 models has been designed with systematic variations in the most fundamental parameters: displacement and beam for fixed length. Six of those models have been tested both appended and bare-hull, in calm water and head seas. Analysis of residuary resistance, both upright and heeled, has been used to improve the Velocity Prediction Programs (VPPs) employed by both the International Measurement System (IMS) and AMERICAP rules.
Analysis of Hull Shape Effects on Hydrodynamic Drag in Offshore Handicap Racing Rules
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Teeters, Jim, Pallard, Rob, and Caroline Muselet. "Analysis of Hull Shape Effects on Hydrodynamic Drag in Offshore Handicap Racing Rules." Paper presented at the SNAME 16th Chesapeake Sailing Yacht Symposium, Annapolis, Maryland, USA, March 2003. doi: https://doi.org/10.5957/CSYS-2003-004
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