This does not equate directly to speed through the water, however, as it does not take into account waterline length, wetted surface area, and all the other numerous factors which go into making one boat faster than another. Seperate tables are given for upwind and downwind rankings. Many of the classes listed have links to their web sites. Boats with trapeze will produce more righting moment per pound. This is not accounted for in this table.
Some classes have conventional spinnakers, some asymmetric.
This is not noted in this table. The Portsmouth Number is a time handicap assigned by the U.S. Sailing Association. Lower numbers indicate faster boats. Crew weights are as given by class officers or class competitors. Olympic classes are selected every four years by a special advisory committee to the IOC, and are generally considered to attract a very high caliber of competition.