The RYA Portsmouth Yardstick Scheme is a method of applying handicaps to sailing boats to allow different types of boat to compete on level terms.
RYA朴茨茅斯基准体系的原理是,通过引⼊帆船让分制度,使不同等级的帆船能够公 平竞争。
It is based on the race results sent in by sailing clubs at the end of each year. From these, the Portsmouth Numbers can be worked out or updated. Essentially, each type of boat is allocated a Portsmouth Number (PN) roughly based around a thousand. The lower the number the faster the boat. If a boat with a PN of 950 takes 950 seconds to go around a course, a boat with a number of 1,050 should cover the same course in 1,050 seconds.