470 (dinghy)
Olympic sailing class
title: "470 (dinghy)" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["470-(dinghy)", "dinghies", "1960s-sailboat-type-designs", "sailboat-type-designs-by-french-designers", "sailboats-defined-by-class"] description: "Olympic sailing class" topic_path: "geography/france" source: "https://en.wikipedia.org/wiki/470_(dinghy)" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Olympic sailing class ::
::data[format=table title="Infobox sailboat specifications"]
| Field | Value |
|---|---|
| image | 470 dinghy.svg |
| class_symbol | [[Image:470 blue.svg |
| crew | 2 (single trapeze) |
| loa | 4700 mm |
| lwl | 4400 mm |
| beam | 1690 mm |
| draft | 150 mm |
| 970 mm | |
| hull | 120 kg |
| mainsail | 9.12 m2 |
| jib | 3.58 m2 |
| spinnaker | 13 m2 |
| d-pn | 86.3 |
| rya-pn | 973 |
| designer | André Cornu |
| year | 1963 |
| olympic | current |
| :: |
|image = 470 dinghy.svg |caption = |class_symbol = [[Image:470 blue.svg|120x60px]] |crew = 2 (single trapeze) |loa = 4700 mm |lwl = 4400 mm |beam = 1690 mm |draft = 150 mm 970 mm |hull = 120 kg |mainsail = 9.12 m2 |jib = 3.58 m2 |spinnaker = 13 m2 |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 dinghy with a centreboard, Bermuda rig, and centre sheeting. Equipped with a spinnaker, trapeze and a large sail-area-to-weight ratio, it is designed to plane easily, and good teamwork is necessary to sail it well. The name comes from the boat's length of 470 cm.
The 470 is a World Sailing International Class and has been an Olympic class since the 1976 games.
History
The 470 was designed by the Frenchman André Cornu in 1963 (four years after the 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.
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 kg, making it a suitable boat for men, women and youth teams. Due to various options for 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. Good teamwork between helm and crew is essential for successful racing.
Races
::figure[src="https://upload.wikimedia.org/wikipedia/commons/b/b2/470_al_via.jpg"] ::
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.
::figure[src="https://upload.wikimedia.org/wikipedia/commons/6/62/470_dingy.jpg" caption="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.
The 470 may be raced in a mixed fleet of boats, its performance being adjusted by the Portsmouth Yardstick handicapping scheme. In the RYA-administered scheme, the 470 has a Portsmouth number of 973. In the US Sailing-administered scheme, it has a D-PN of 86.3.
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 fibreglass with integral buoyancy tanks for the hull.
The 470 dinghy is 4.70 m long with a mast. Its weight without sails is 120 kg.
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 2028 Olympic Games, it will be sailed during the mandatory mixed-gender event.
Open Gender
::data[format=table] | 1984 Los Angeles | ESP Luis Doreste Roberto Molina | USA Steve Benjamin Chris Steinfeld | FRA Thierry Peponnet Luc Pillot | |---|---|---|---| ::
Male
Female
Mixed
::data[format=table] | 2024 Paris | AUT Lara Vadlau Lukas Mähr | JPN Keiju Okada Miho Yoshioka | SWE Anton Dahlberg Lovisa Karlsson | |---|---|---|---| ::
470 World Championships
Main article: 470 World Championships
470 Junior World Championships
Main article: 470 Junior World Championships
References
References
- "About the 470 - 470 Sailing". International 470 Class Association.
- "RYA Portsmouth Yardstick List 2010". Royal Yachting Association.
- "Centerboard Classes". US Sailing.
- "www.470.org".
- "Olympedia -- Two Person Dinghy (470), Open". Olympedia.
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::