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Old 05-11-2008
micksbuddy's Avatar
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PHRF, light air?

Does a lower phrf rating usually correlate to better light air performance, or are the ratings more based on moderate to heavier wind conditions?
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Old 05-11-2008
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The PHRF rating is a combination of performance under a variety of conditions - light and heavy air, upwind and downwind, etc. Every boat has a set of conditions where it has an advantage and will sail faster than the PHRF rating will predict. A better indication of light air performance is the sail area to displacement ratio (SA/D). A higher ratio would indicate better light air performance.
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