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| Development | |
|---|---|
| Design | Development class |
| Boat | |
| Crew | 3 |
| Draft | 1 m (3 ft 3 in) |
| Hull | |
| Hull weight | minimum 600 kg (1,300 lb) |
| LOA | 6.5 m (21 ft) |
| LWL | minimum 5.2 m (17 ft) |
| Rig | |
| Sails | |
| Upwind sail area | maximum 30 m2 (320 sq ft) |
TheInternational 6.5 Metre Class is asailing construction class. Theboats are not identical but designed to meet specific measurement formula, in this case theFrench rule calledJauge chemin de fer.
The 6.5m was used as an Olympic Class during the1920 Olympics.[citation needed]
The first formula of the 6.5m, was worked out by Louis Dyèvre, member of the Société des régates de Vannes,naval architect and member of the French delegation to the congress ofLondon of 1906,[1] is inspired by the formula of theNew York Yacht Club in 1903:
Lf represents thewaterline length (LWL), S the measuredsail area, D displacement.
The principal restrictions are:
| Games | Gold | Silver | Bronze |
|---|---|---|---|
| 1920 Antwerp details |  Netherlands (NED)Joop Carp Berend Carp Petrus Wernink |  France (FRA)Albert Weil Robert Monier Félix Picon | No further competitors |