 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (January 2009) |
 Class symbol | |
 French Mac Miche – gold medalist at the 1912 Summer Olympics in Stockholm | |
| Development | |
|---|---|
| Year | 1907 (rule design) |
| Design | Development class |
The International Six Metre class is a class of classic racing yachts. Sixes are a construction class, meaning that the boats are not identical but are all designed to meet specific measurement formula, in this case International rule. At their heyday, Sixes were the most important international yacht racing class, and they are still raced around the world. "Six metre" in class name does not, somewhat confusingly, refer to length of the boat, but product of the formula; 6mR boats are, on average, 10–11 metres long.