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U.S. Portsmouth Yardstick Numbers

Thanks to US Sailing, the following link will give you the most up to date info for the US Portsmouth Olympic Homepage.  

The US Sailing Portsmouth Yardstick is a widely used method of rating boats of different classes sailing the same course. These numbers are defined as the length of time boats would take to sail a common but unspecified distance.

Clubs and organizations using this rating system are asked to forward race data including information on the average wind velocity, class of boat, elapsed time and corrected time (if possible) to or by mail to Carl Reigart, 962 Diane Street, Leeds, AL 35094, or vial mail to US Sailing, Attn. Portsmouth Committee, PO Box 1260, Portsmouth, RI 02871 USA.