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One Ton class was an offshore sailing class, which raced for the
One Ton Cup The One Ton Cup is a trophy presented to the winner of a sailing competition created in 1899 by the Cercle de la voile de Paris (CVP). Synopsis The One Ton Cup regattas were at the beginning of races between one-tonner sailing dinghies, acco ...
, of the RORC 22 foot rule between 1965 and 1970, and then the
International Offshore Rule The International Offshore Rule (IOR) was a measurement rule for racing sailboats. The IOR evolved from the Cruising Club of America (CCA) rule for racer/cruisers and the Royal Ocean Racing Club (RORC) rule. Rule context - past and present rating ...
between 1971 and 1994.histoiredeshalfs.com: "SOMMAIRE des ONE TONNERS UTILISES avec la jauge IOR"
/ref> The IOR rated length was 27.5' from 1971 to 1982, then in order to match the minimum class of the
Admiral's Cup The Admiral's Cup was an international yachting regatta. For many years it was known as the unofficial world championship of offshore racing. The Admiral's Cup regatta was started in 1957 and was normally a biennial event (occurring in odd-numbe ...
, the rated length for the One Ton class increased to 30.55' from 1983 onwards. As well as regional competitions, the class spawned national-level trophies such as the North American One Ton cup. It was reputed in 1994 by Yachting World as "the most competitive trophy" which has "had the greatest influence on offshore yacht racing design and techniques".1994 October "Yachting World": One Ton Cup, The Most Competitive Trophy


See also

* Mini Ton class * Quarter Ton class *
Half Ton class Half Ton class was an offshore sailing class of the International Offshore Rule racing the Half Ton Cup between 1967 and 1993. History In order that yachts of different types can race against each other, there are handicap rules which are appl ...
*
Three-Quarter Ton class Three-Quarter Ton class was an offshore sailing class of the International Offshore Rule racing the Three-Quarter Ton Cup between 1974 and 1994.1994 October ''Yachting World'': "One Ton Cup, The Most Competitive Trophy", p.88-89 Boats * C&C 3/4 T ...
* Two Ton class *
Midget Ocean Racing Club The Midget Ocean Racing Club (MORC) is an American association based in Severna Park, Maryland, that promotes and organizes ocean racing for small sailboats under a handicapping rule. History Founded in 1954, the club was formally organized a ...


References

{{Reflist Development sailing classes Keelboats