The International Six point Five Metre Class is a ''
construction class
Construction is a general term meaning the art and science to form objects, systems, or organizations,"Construction" def. 1.a. 1.b. and 1.c. ''Oxford English Dictionary'' Second Edition on CD-ROM (v. 4.0) Oxford University Press 2009 and come ...
'', meaning that the
boats are not identical but are all designed to meet specific measurement formula, in this case the
French
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* Something of, from, or related to France
** French language, which originated in France, and its various dialects and accents
** French people, a nation and ethnic group identified with Franc ...
rule called ''Jauge chemin de fer''.
History
The 6.5m was used as an Olympic Class during the
1920 Olympics
The 1920 Summer Olympics (french: Jeux olympiques d'été de 1920; nl, Olympische Zomerspelen van 1920; german: Olympische Sommerspiele 1920), officially known as the Games of the VII Olympiad (french: Jeux de la VIIe olympiade; nl, Spelen van ...
.
The first formula of the 6.5m, was worked out by Louis Dyèvre, member of the Société des régates de Vannes,
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and member of the French delegation to the congress of
London of 1906, is inspired by the formula of the
New York Yacht Club in 1903:
:
Lf represents the
waterline length (LWL), S the measured
sail area, D displacement.
The principal restrictions are:
* Maximum length: 6.50 m
* Minimum displacement: 600 kg
* Draft: 1 m
* Measured sail area : 30 m
2
* Maximum cockpit area: 2 m
2
* The LWL taken into account in the formula is at least of the 4/5 the length.
Olympic results
1920
{{Olympic class sailboats
Keelboats
Olympic sailing classes
Development sailing classes