Data collection from full-scale 12-meter yachts was an important part of the project that led to the America's Cup challenger Stars & Stripes. A data system was developed around Ockam on-board instruments with a telemetry link to two DEC Microvax II computers, one aboard the tender and one on shore. Applications of the data obtained include validation and improvement of computer models and towing tank tests used in design; discrimination of performance differences associated with hull, keel and sail changes; and development of on-board computer systems to assist decision-making during races.

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