10 Metre
{{more citations needed|date=June 2016}}
{{Infobox sailboat specifications
|image =
|class_symbol = 120x50px
|crew = 8
|design=Development class
|loa = {{convert|16.5|m|abbr=on}}
|lwl = {{convert|11|m|abbr=on}}
|beam = {{convert|3|m|abbr=on}}
|draft = {{convert|2.2|m|abbr=on}}
|hull = {{convert|12000|kg|abbr=on}}
|updated = 14-APR-2010
|olympic = former
}}
The International Ten Metre Class is 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, Metre Classes were the most important group of international yacht racing classes, and they are still actively raced around the world. "Ten" in class name does not, somewhat confusingly, refer to length of the boat, but product of the formula; 10 Metre boats are, on average, 16.5 meters long.
History
The 10 Metre was used as an Olympic Class during the 1912 and 1920 Olympics.{{cite web|last1=Klawiński|first1=George|title=Yachts unusual: PESA|url=https://translate.google.com/translate?hl=en&US=auto&tl=en&u=http%3A%2F%2Fwww.zagle.com.pl%2Fdziennik-pokladowy%2Fjachty-niezwykle%2Fjachty-niezwykle-pesa%2C172_17716.html|publisher=Zagle|access-date=June 3, 2016}}
The International Rule was set up in 1907 to replace earlier, simpler handicap system which were often local or at best, national, and often also fairly simple, producing extreme boats which were fast but lightly constructed and impractical. The rule changes several times in history. About 20 boats were built.
Rule development
= 1907 Rule =
Used from 1907 to 1920
:
10.000 \mbox{ metres} = \frac{L + B + 1/3G +3d + 1/3\sqrt{S} - F}{2}
where
- = waterline length (LWL)
- = beam
- = chain girth
- = difference between girth and chain
- = sail area
- = freeboard
= 1919 Rule =
Used from 1920 to 1933
:
10.000 \mbox{ metres} = \frac{L + 0.25G +2d + \sqrt{S} - F}{2.5}
where
- = waterline length (LWL)
- = chain girth
- = difference between girth and chain
- = sail area
- = freeboard
Events
= Olympics =
| {{MedalistTable|type=Event}} |
| style="align:center;" | 1912 Stockholm {{DetailsLink|Sailing at the 1912 Summer Olympics – 10 Metre}} |style="vertical-align:top;"|File:Flag of Sweden.svg Sweden (SWE) |style="vertical-align:top;"|File:Flag of Russia.svg Finland (FIN) |style="vertical-align:top;"|File:Flag of Russia.svg Russia (RUS) |
| style="align:center;" | 1920 Antwerp 1907 rule {{DetailsLink|Sailing at the 1920 Summer Olympics – 10 Metre}} |style="vertical-align:top;"|File:Flag of Norway.svg Norway (NOR) |style="vertical-align:top;"|No further competitors |style="vertical-align:top;"|No further competitors |
| style="align:center;" | 1920 Antwerp 1919 rule {{DetailsLink|Sailing at the 1920 Summer Olympics – 10 Metre}} |style="vertical-align:top;"|File:Flag of Norway.svg Norway (NOR) |style="vertical-align:top;"|No further competitors |style="vertical-align:top;"|No further competitors |
{{Olympic class sailboats}}