IYF Hamburg February 2010 Originally from San Francisco, California Sailed ULDB ultralight offshore designs: Moore, Express, Santa Cruz Worked for West Coast Designers CHS 32 Aztec IMS/CHS 36 Quokka IRM/IRC 50 Mandrake DK 46 - Production 46 Cruiser/Racer IRC 40 Tiamat M.A.T Production 41 Cruiser/Racer IRC 39 Mariners Cove Daysailer designs Landmark 43 - Production 43 Cruiser/Racer Summit 40 - Production 40 Cruiser/Racer Mini-Maxi Alegre IRC 41 Ambush Summit 35 - Production 35 Cruiser/Racer Projects in Development Design Statements AVOID CONTRADICTION In producing a new yacht, the central philosophy of Mills Design is that of developing and maintaining a focal design concept, the nature and integrity of which will determine the character of the finished product. REDUCE COMPLICATION In attempting to hold to a clear design concept we have found that with careful analysis complex requirements are often best satisfied with simple discrete solutions, simplicity being a key to success in competitive sailing. Design Process Design Type Example: IRC 30-40 The design type for this displacement range developed by Mills Design relies on a slim low wetted surface hull shape to provide minimum drag in the light and downwind, but with sufficient displacement for a large bulb to produce outstanding stability upwind in a breeze. That balance of weight, vcg, and sail area works not only to create a design with exceptional performance but to do so in a way that rating rules can digest most easily leading to the best possible performance/rating profile, especially on a Windward Leeward course in any wind speed. Design Process Design Type Example: IRC Mini-Maxi At larger sizes the freedom to concentrate on high performance combines with the inherent increase in stability afforded by the larger size and proportionate reduction in build weight to tilt the design cycle towards a power equation where target windspeed ranges and angles dictate the final balance of beam, wetted surface area, and drag. Designs looking to perform in lighter windspeeds opt for lower drag, while the design type that excels in windier more reaching courses is wider, lighter, and can benefit from specific design features like chines. Design Tools Goal