View source for 470 (dinghy)

{{Short description|Olympic sailing class}}
{{Infobox sailboat specifications
|image         = 470 dinghy.svg
|caption       = 
|class_symbol  = [[Image:470 blue.svg|120x60px]]
|crew          = 2 (single [[Trapeze (Dinghy Gear)|trapeze]])
|loa           = {{convert|4700|mm|ftin|abbr=on|sigfig=2}}
|lwl           = {{convert|4400|mm|ftin|abbr=on|sigfig=2}}
|beam          = {{convert|1690|mm|ftin|abbr=on|sigfig=2}}
|draft         = {{convert|150|mm|ftin|abbr=on|sigfig=2}}<br>{{convert|970|mm|ftin|abbr=on|sigfig=2}}
|hull          = {{convert|120|kg|abbr=on}}
|mainsail      = {{convert|9.12|m2|abbr=on}}
|jib           = {{convert|3.58|m2|abbr=on}}
|spinnaker     = {{convert|13|m2|abbr=on}}
|d-pn          = 86.3
|rya-pn        = 973
|phrf          = 
|designer=[[André Cornu]]
|year = 1963
|updated       = 
|olympic       = current
}}
The '''470''' (Four-Seventy) is a double-handed [[monohull]] [[planing (sailing)|planing]] [[dinghy]] with a [[centreboard]], [[Bermuda rig]], and centre sheeting. Equipped with a [[spinnaker]], [[Trapeze (sailing)|trapeze]] and a large sail-area-to-weight ratio, it is designed to [[planing (boat)|plane]] easily, and good teamwork is necessary to sail it well. The name comes from the boat's length of {{convert|470|cm|m ftin}}. 

The 470 is a [[World Sailing]] International Class and has been an [[Olympic Games|Olympic]] class since the [[1976 Summer Olympics|1976 games]].<ref name="Olympedia"/>

==History==
The 470 was designed by the Frenchman André Cornu in 1963 (four years after the [[420 (dinghy)|420]], its smaller sister) as a modern fibreglass planing dinghy to appeal to sailors of different sizes and ages. This formula succeeded, and the boat spread around the world. In 1969, the class was given international status and it has been an Olympic class since 1976. In 1988, the first Olympic women's sailing event used the 470.{{Citation needed|date=August 2020}}

== Sailing ==
To sail the 470, good physical fitness but not too much physical strength is required. The optimal weight of the combined crew ranges between 110 and 145&nbsp;kg, making it a suitable boat for men, women and youth teams. Due to various options for [[Sailing#Trimming|sail trimming]] one can sail the boat well at 1 to 6 [[Beaufort scale]], slightly above by experienced teams. For racing the 470 is a tactically demanding class, since differences in boat speed are small and the boat does not lose much speed during manoeuvers.<ref name="470.org_About"/> Good teamwork between helm and crew is essential for successful racing.

==Races==
[[Image:470 al via.jpg|thumb]]
World and Continental Championships are organised every year with separate starts for women and men/mixed teams. There is also a World Championship for juniors and a Master World Championship. The 470 is used in regional championships such as the Asian, Mediterranean, and PanAm Games. Entries are limited in important international races, encouraging more competition by requiring qualifying races in most countries.{{Citation needed|date=August 2020}}

[[Image:470 dingy.jpg|right|thumb|280px|2008 470 World Champions Erin Maxwell and Isabelle Kinsolving sailing upwind.]]
In the World Championships more than 30 countries have been represented. There are 65 member nations in the International Class Association and more than 40,000 boats have been built in 20 countries.{{Citation needed|date=August 2020}}

The 470 may be raced in a [[Sailing (sport)#Handicap Racing|mixed fleet]] of boats, its performance being adjusted by the [[Portsmouth Yardstick]] handicapping scheme. In the [[Royal Yachting Association|RYA]]-administered scheme, the 470 has a Portsmouth number of 973.<ref name="RYA2010"/> In the [[US Sailing]]-administered scheme, it has a D-PN of 86.3.<ref name="UScb"/>

==Construction==
The 470 is a strict one-design class, and its builder must be approved a Licensed Builder by World Sailing.  The class design may evolve, but its intent is to use proven, economical, and environmentally sound materials, currently [[glass-reinforced plastic|fibreglass]] with integral buoyancy tanks for the hull.<ref name = "ClassRules"/>

The 470 dinghy is {{convert|4.70|m|ftin|abbr=on}} long with a {{height|m=6.76|precision=0}} mast. Its weight without sails is {{convert|120|kg|lboz|abbr=on}}.<ref name="470.org_About"/>

==Events==

===Olympics===
At the [[Olympic Games]], the 470 Class was initially has been used at every games since 1976 games with various gender requirement. In the [[Sailing at the 2028 Summer Olympics|2028 Olympic Games]], it will be sailed during the mandatory mixed-gender event.

=== Open Gender ===
{| {{MedalistTable|width=225|labelwidth=200}}
|-valign="top"
| [[Sailing at the 1976 Summer Olympics|1976 Montreal]]<br>{{DetailsLink|Sailing at the 1976 Summer Olympics – 470}}
| {{flagIOCteam|FRG|1976 Summer}}<br>[[Frank Hübner]]<br>[[Harro Bode]]
| {{flagIOCteam|ESP|1976 Summer}}<br>[[Antonio Gorostegui]]<br>[[Pedro Millet]]
| {{flagIOCteam|AUS|1976 Summer}}<br>[[Ian Brown (sailor)|Ian Brown]]<br>[[Ian Ruff]]
|-valign="top"
| [[Sailing at the 1980 Summer Olympics|1980 Moscow]]<br>{{DetailsLink|Sailing at the 1980 Summer Olympics – 470}}
| {{flagIOCteam|BRA|1980 Summer}}<br>[[Marcos Soares (sailor)|Marcos Soares]]<br>[[Eduardo Penido]]
| {{flagIOCteam|GDR|1980 Summer}}<br>[[Jorn Borowski]]<br>[[Egbert Swensson]]
| {{flagIOCteam|FIN|1980 Summer}}<br>[[Jouko Lindgrén]]<br>[[Georg Tallberg]]
|-valign="top"
| [[Sailing at the 1984 Summer Olympics|1984 Los Angeles]]<br>{{DetailsLink|Sailing at the 1984 Summer Olympics – 470}}
| {{flagIOCteam|ESP|1984 Summer}}<br>[[Luis Doreste]]<br>[[Roberto Molina (sailor)|Roberto Molina]]
| {{flagIOCteam|USA|1984 Summer}}<br>[[Steve Benjamin (yacht racer)|Steve Benjamin]]<br>[[Chris Steinfeld]]
| {{flagIOCteam|FRA|1984 Summer}}<br>[[Thierry Peponnet]]<br>[[Luc Pillot]]
|}

==== Male ====
{{Olympic medallists in Men's 470}}

==== Female ====
{{Olympic medallists in Women's 470}}

==== Mixed ====
{| {{MedalistTable|width=225|labelwidth=200|type={{Navbar-header|Games|Olympic medallists in Mixed 470}}}}
|- style="vertical-align:top;"
| [[Sailing at the 2024 Summer Olympics|2024 Paris]]<br>{{Details link|Sailing at the 2024 Summer Olympics – Mixed 470}}
| {{flag IOC team|AUT|2024 Summer}}<br>[[Lara Vadlau]]<br>[[Lukas Mähr]]
| {{flag IOC team|JPN|2024 Summer}}<br>[[Keiju Okada]]<br>[[Miho Yoshioka]]
| {{flag IOC team|SWE|2024 Summer}}<br>[[Anton Dahlberg]]<br>[[Lovisa Karlsson]]
|}

===470 World Championships===
{{Main|470 World Championships}}

===470 Junior World Championships===
{{Main|470 Junior World Championships}}

==See also==
*[[ISAF Sailing World Championships]]
*[[World Sailing]]
*[[420 (dinghy)]]
*[[420 World Championships]]

==References==
{{Reflist|refs=
<ref name="470.org_About">{{cite web |title=About the 470 - 470 Sailing |url=https://www.470.org/default/classinfo/content/id/about-the-470 |publisher=International 470 Class Association |access-date=11 August 2023}}</ref>

<ref name="RYA2010">{{cite web |url=http://www.rya.org.uk/SiteCollectionDocuments/technical/Web%20Documents/py-general/2010%20Part%207%20PN%20List.pdf |title=RYA Portsmouth Yardstick List 2010 |publisher=Royal Yachting Association |access-date=21 August 2012 |archive-url=https://web.archive.org/web/20130525172946/http://www.rya.org.uk/SiteCollectionDocuments/technical/Web%20Documents/py-general/2010%20Part%207%20PN%20List.pdf |archive-date=25 May 2013 |url-status=dead}}</ref>

<ref name="UScb">{{cite web|url=http://offshore.ussailing.org/Portsmouth_Yardstick/Current_Tables/Centerboard_Classes.htm |title=Centerboard Classes |publisher=US Sailing |access-date=31 July 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120315064646/http://offshore.ussailing.org/Portsmouth_Yardstick/Current_Tables/Centerboard_Classes.htm |archive-date=15 March 2012}}</ref>

<ref name = "ClassRules">470 Class Rules, available at {{cite web|url=http://www.470.org/default/technical/content/id/470-class-rules/|title=www.470.org |access-date=Aug 20, 2016}}</ref>

<!--unused ref name="Paris2024">[https://www.paris2024.org/en/sport/sailing/ Sailing] 2024 Olympics Paris</ref-->

<ref name="Olympedia">{{cite web |title=Olympedia -- Two Person Dinghy (470), Open |url=https://www.olympedia.org/results/9950 |publisher=Olympedia |access-date=11 August 2023}}</ref>
}}

==External links==
{{Commons category}}
* [http://www.470.org/ Official class website]
* [https://web.archive.org/web/20110408032627/http://www.sailing.org/classes/I470.php International Sailing Federations 470 Microsite]

{{Classes of the International Sailing Federation}}
{{Olympic class sailboats}}
{{Sailing dinghies and skiffs}}
{{Authority control}}

[[Category:470 (dinghy)| ]]
[[Category:Dinghies]]
[[Category:1960s sailboat type designs]]
[[Category:Sailboat type designs by French designers]]