420 (dinghy)

420
Development
Class symbol
420s under sail
Designer	Christian Maury
Year	1959
Design	One-Design
Role	Youth trainer, racing
Boat
Crew	2
Draft	0.965 metres (3 ft 2.0 in)
Trapeze	Single
Hull
Type	Monohull
Construction	GRP
Hull weight	80 kilograms (180 lb)
LOA	4.20 metres (13 ft 9 in)
Beam	1.63 metres (5 ft 4 in)
Hull Appendages
Keel/Board Type	Centerboard
Rig
Rig Type	Bermuda
Mast Length	6.26 metres (20 ft 6 in)
Sails
Mainsail area	7.45 square metres (80.2 sq ft)
Jib / Genoa area	2.8 square metres (30 sq ft)
Spinnaker area	8.83 square metres (95.0 sq ft)
Upwind Sail Area	10.25 square metres (110.3 sq ft)^[1]
Misc
D-PN	86.3^[2]
RYA PN	1087^[3]
Class is a member of World Sailing

The International 420 Class Dinghy is a double-handed (2 crew) monohull planing dinghy with centreboard, bermuda rig and centre sheeting. The name describes the overall length of the boat in centimetres (the boat is exactly 4.2 metres long). The hull is fibreglass with internal buoyancy tanks. The 420 is equipped with spinnaker and optional trapeze, making teamwork necessary to sail it well. It has a large sail-area-to-weight ratio, and is designed to plane easily. It can be rigged to be sailed single-handed.

The 420 was designed specifically to be easier to handle than its larger higher-performance cousin, the 470. The 420 was designed by French engineer Christian Maury, as a stepping-stone for club and youth sailing to the 470. The 420 is an International class recognized by the International Sailing Federation.

A derivative of the 420 called the Club 420 is popular in the North America. This class is not recognised by International Sailing Federation or the International 420 Class Association and cannot be used at class events. The boats are very similar in appearance but the Club 420 is slightly stronger, heavier and less refined.

History

The International 420 was designed by Christian Maury, after a specification drawn by Aristide Lehoerrff and Pierre Latxague, chief sailing instructors of the Centerport sailing school South-West France near St Jean de Luz. It was built at first by French industrialist Lucien Lanaverre, a former cooper for the Bordeaux wine industry, who had converted to the then new industry of GRP polyester moulding^[4] in the 1960s as an inexpensive general purpose two sail, transom sheeted, non-trapeze dinghy, with modest easily handled sail plan. The class developed rapidly in France, being adopted nationally as a youth trainer for the larger Olympic class International 470 which was designed by André Cornu. By the late 1960s the class was adopted by a few UK university sailing clubs for training and team racing. It has the famous Bermuda rig.

Construction

The class adopted a policy of "prudent evolution" so as to allow development without making existing dinghies obsolete. The hull's seaworthiness and stability at speed proved to be better than most of its contemporaries, and this together with its modest sail area make it fun to sail in heavy weather and thus an excellent youth trainer, qualities that led to its adoption for that role by the RYA in the mid-1970s.

With its trapeze and spinnaker it provides the capability for advanced sailing techniques for international standard sailors, while still remaining affordable and accessible to beginners. The International 420 maintains a large multinational class association. The combination of effective class management, the boat's inherent sailing qualities, and prudent evolution have contributed to the class's continuing success.

World Championships

Open

Year	Gold	Silver	Bronze
1973 Adelaide	Australia Wangel Giles
1974 Kiel	France Alain Chourgnoz Denis Cerda
1975 Medemblik	United States Whitehurst	France Russo	Netherlands Carels
1976 Barrington	Stephen Taylor (USA) Joan Massey (USA) Yale Sailing Center
1977 Baiona	Stephen Taylor (USA) Joan Massey (USA)	Israel
1978 Jyllinge	France Pollet Johanssen	Great Britain Cathy Foster Wendy Hilder	Spain Sallent Isnard
1979 Tróia	Italy Di Salle Vassalo	West Germany Möller Möller	New Zealand Dickson Wilcox
1980 Quiberon	Israel Shimshon Brokman Eitan Friedlander	France Brenac Mikuelis	France Jaffrezeic Berthonneau
1982 Adelaide	Australia Ferris McKay	United States Brown	West Germany Etten
1984 Annapolis	West Germany A. Andruleit H. Andruleit	West Germany Filimonow Stöckmann	Canada Ellis Ferrow
1986 Nieuwpoort	France Eric Godard Christophe Godard
1987 Balatonfüred	France Jean-François Berthet Gwendoel Berthet	France Eric Godard Christophe Godard
1988 Lake Macquarie	France W. Sanchez-Diez Bertrand Dumortier	West Germany Christian Halm Alexander Halm	France Jean-François Berthet Gwendoel Berthet
1989 Mošćenička Draga	France David Ravet Bertrand Loyal	Great Britain Steve Irish Greg Irish	Great Britain John Merricks Rob Wilson
1990 Crozon	France Christian Gout Jean Gout
1991 Rimini	Great Britain Steve Irish Greg Irish
1992 Caesarea	Spain Gustavo Martínez Dimias Wood
1993 Marstrand	Italy Marcello Luciani Dario Luciani
1994 Plymouth	Great Britain John Merricks Ian Lovering
1995 Fremantle	Australia Roger Perrett Teague Czislowski
1996 Blankenberge	Portugal M. Fortunato M. Nunes
1997 Newport	France W. Sanchez-Diez Gabriol
1998 Palamós	France Nicolas Charbonnier David Deguine

Open Under 17

Year	Gold	Silver	Bronze
2015 Karatsu	Edoardo Ferraro (ITA) Francesco Orlando (ITA)	Aggelos Arvanitis (GRE) Theofanis Kanakaris (GRE)	Carlos Balaguer (ESP) Ignacio Balaguer (ESP)
2016 Sanremo^[5]	Telis Athanasopoulos Yogo (GRE) Dimitris Tassios (GRE)	Eduard Ferrer (ESP) Carlos De Maqua (ESP)	Enzo Balanger (FRA) Gaultier Tallieu (FRA)

Male & Mixed

Year	Gold	Silver	Bronze
1999 Athens	France Nicolas Charbonnier David Deguine		Portugal Pedro Pinto Miguel Pinto
2000 La Rochelle	Australia Mathew Belcher Daniel Belcher	Italy Luca Matteo Bursic Thomas Jacob	Greece Mileos Michaelis Theodores Polighrondis
2001 Ravenna	Italy Michel Mazzotti Guilia Mazzotti	Spain R. Medina J. Cerezo	Italy B. Danti F. Geggio
2002 Tavira	India Farokh Tarapore Vikas Kapila	Great Britain Nic Asher Elliot Willis	France Morgan Lagravière Noé Delpech
2003 Hayling Island	Spain José Antonio Medina Onan Barreiros	France Nicolas Duron Sébastian Durand	France Morgan Lagravière Noé Delpech
2004 Melbourne	Australia Nathan Wilmot Malcolm Page	Australia Mathew Belcher Rike Ziegelmayer	Australia Nathan Outteridge Ayden Menzies
2005 Brest	Portugal Tomas da Silva Francisco Gomes	Italy Alfredo Capodanno Vittorio Papa	Spain Pablo Santurde Abelardo Quevedo
2006 Las Palmas	New Zealand Carl Evans Peter Burling	New Zealand Simon Cooke Scott Illingworth	France Fernando Lodos Julien Pulve
2007 Auckland	New Zealand Carl Evans Peter Burling	New Zealand Simon Cooke Scott Illingworth	New Zealand Rowan Swanson Bruce Kennedy
2008 Athens	Greece Michalis Mileos Evangelos-Vasileio Mitakis	Greece Vasilis Papoutsoglou Akilas Drougas	Italy Edoardo Mancinelli Scotti Lorenzo de Felice
2009 Lake Garda	Greece Antonios Tsimpoukelis George Karonis	New Zealand Francisco Lardies Finn Drummond	Great Britain Ben Palmer Konrad Weaver
2010 Haifa	Singapore Justin Liu Sherman Cheng	Italy Francesco Falcetelli Gabriele Franciolini	Italy Edoardo Mancinelli Scotti Leonardo Cucchiara
2011 Buenos Aires	Argentina Pablo Volker Agustin Cunill Martinez	Italy Edoardo Mancinelli Scotti Leonardo Cucchiara	Chile Benjamín Grez Diego Gonzalez
2012 Lake Neusiedl	Greece Alex Kavas George Kavas	France Guillaume Pirouelle Valentin Sipan	Spain David Charles Alex Charles
2013 Valencia	Spain Xavier Antich Pedro Terrones	Brazil Tiago Brito Andrei Kneipp	France Sebastien Simon Pierre Rhimbault
2014 Lübeck	Spain Jose Manuel Ruiz Fernando Dávila	France Hippolyte Macheti Sidoine Dantes	Israel Ido Bilik Ofek Shalgi
2015 Karatsu	Japan Daichi Takayama Syota Nakano	United States Wiley Rogers Jack Parkin	Hong Kong Calum Gregor Hugo Christensson
2016 Sanremo^[6]	Diogo Costa (POR) Pedro Costa (POR)	Wiley Rogers (USA) Jack Parkin (USA)	Vasilios Gourgiotis (GRE) Orestis Batsis (GRE)

Female

Year	Gold	Silver	Bronze
1980 Charlottenlund	Italy Claudia Mazzaferro Galeazzi
1981	Italy Claudia Mazzaferro Galeazzi
1986 Nieuwpoort	Italy M. Bazzini D. De Cagno
1987 Cervia	France V. Ravet D. Besson
1988	Spain Leon Leon
1989	Sweden Martina Wendin Boel Bengtsson
1990 Miura	France Céline Hendrick Catherine Condolf
1991 Rimini	France Marie LeCadre Laure Fernandez
1998 Galaxidi	Israel Limor Kliger Vered Buskila
1999 Athens	Greece Dimitra Milona Aliki Kourkoulou
2000 La Rochelle	Great Britain Christina Bassedone Helen Mayhew	Greece Altana Danezi Evagelia Vlachov	Italy Elena Ziliani Alessandra Marenzi
2001 Ravenna	Italy Elisabetta Sacchegiani Maria Paola Bertone	Italy Sara Postogna Anna Postogna	Italy Carolina Mariani Camilla Gabrielli
2002 Tavira	France Caroline Jonet Magali Pallanca	Greece Spiridoula Mileou Sofia Papadopoulou	Brazil Isabel Barzaghi Laura Zani
2003 Hayling Island	Brazil Isabel Barzaghi Laura Zani	Great Britain Charlotte Savage Maia Walsh	Germany Dorothea Gebert Natascha Lorenz
2004 Mornington	Australia Elise Rechichi Tessa Parkinson	Great Britain Lucy MacGregor Nicola MacGregor	France Camille Lecointre Gwendolyn Lemaitre
2005 Brest	Italy Maria Stella Turizio Maria Carolina Rendano	France Marie Lumeau Claire Bossard	Great Britain Maria Stanley Catherine Alton
2006 Las Palmas	Great Britain Hannah Mills Peggy Webster	Spain Tara Pacheco-Van Rijnsoever Elena Barambio	Italy Benedetta Danti Elisa Cecconi
2007 Auckland	New Zealand Jo Aleh Polly Powrie	New Zealand Shelley Hesson Bianca Barbarich-Bacher	New Zealand Sarah Bilkey Rosie Sargisson
2008 Athens	Greece Katerina Kaitatzidou Sofia Kaitatzidou	Israel Gil Cohen Adva Kremer	Greece Afrodite Kyranakou Elena Nikiforidi
2009 Lake Garda	New Zealand Alex Maloney Bianca Barbarich-Bacher	Italy Camilla Marino Claudia Soricelli	United States Sydney Bolger Caitlin Beavers
2010 Haifa	Italy Roberta Caputo Benedetta Barbiero	United States Morgan Kiss Katia Da Silva	Italy Christina Celli Silvia Morini
2011 Buenos Aires	Great Britain Annabel Vose Megan Brickwood	Germany Nadine Bohm Monika Lindner	France Maelenn Lemaitre Aloise Retornaz
2012 Lake Neusiedl	Singapore Rachel Lee Cecilia Low	Chile Nadja Horwitz Sofia Middleton	Singapore Griselda Khng Shu Xian Lee
2013 Valencia	Great Britain Annabel Cattermole Bryony Bennett-Lloyd	Singapore Kimberly Lim Savannah Siew	United States Sara Scotto Di Vettimo Vittoria Barbiero
2014 Lübeck	Italy Carlotta Omari Francesca Russo Cirillo	Singapore Kimberly Lim Savannah Siew	Greece Aikaterini Tavoulari Fotini Koutsoumpou
2015 Karatsu	Spain Marta Garrido María Jesus Dávila	France Charlotte Yven Marine Riou	Japan Misaki Tanaka Sena Takano
2016 Sanremo^[7]	Francesca Russo Cirillo (ITA) Alice Linussi (ITA)	María Bover Guerrero (ESP) Clara Llabrés (ESP)	Maria Vittoria Marchesini (ITA) Cecilia Fedel (ITA)

420 Team Racing World Championships

The boat has been used for team racing in both the ISAF Team Racing World Championship and the ISAF World Sailing Games however the class established it own team racing competition in 2015. Only the International 14 and Optimist (dinghy) class hold also hold a team racing based World Championships.

Year	Gold	Silver	Bronze
2015 Lake Garda^[8]	Spain	Italy	Portugal
2016 Lake Garda

IYRU Women World Championships

Year	Gold	Silver	Bronze
1978 Monnickendam	Cathy Foster (GBR) Wendy Hilder (GBR)	Marie Chrustine Hue (FRA) Claire Lefur (FRA)	Genevieve Levaillant (FRA) Blandine Levaillant (FRA)
1978 Rochester	Cathy Foster (GBR) Wendy Hilder (GBR)	Taylor (USA) Lewis (USA)	Currey (GBR) Blake (GBR)
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992

ISAF Youth Worlds

The class has been used for almost all the ISAF Youth Sailing World Championships as the two person dinghy for boys and girls. For a couple of years the class was competing for the slot with both the 29er and Laser 2. The Laser 2 is no longer recognised equipment for the youth worlds and the 29er has been recognised separately for the skiff discipline.

References

↑ "Introduction to the 420". Archived from the original on 2012-01-20.
↑ "Centerboard Classes". Offshore.ussailing.org. Retrieved 31 July 2012.
↑ "Portsmouth Number List 2012". Rya.org.uk. Retrieved 31 July 2012.
↑ "INTERNATIONAL 420 Sailboat SailPlan Data and Sail Quoting System". Sailritesails.com. Retrieved 2015-05-03.
↑ http://2016worlds.420sailing.org/en/default/races/race
↑ http://2016worlds.420sailing.org/en/default/races/race
↑ http://2016worlds.420sailing.org/en/default/races/race
↑ http://www.campioneunivela.it/2-it-53366-international-420-world-team-racing-championship-2015.php

External links

Wikimedia Commons has media related to 420 (dinghy).

Classes of World Sailing

Current Olympic classes	470 49er 49er FX Finn Laser Laser Radial RS:X Nacra 17

ISAF centreboard classes	29er 420 505 B14 Byte Cadet Contender Enterprise Europe Fireball Flying Dutchman Flying Junior GP14 Int. 14 Laser 2 Laser 4.7 Lightning Mirror Moth Musto Performance Skiff O'pen BIC OK Dinghy Optimist RS Feva RS Tera RS100 RS500 Snipe Splash Sunfish Tasar Topper Vaurien Zoom 8

ISAF keelboat classes	12 mR 2.4 mR 5.5 m 6 mR 8 mR Dragon Etchells Flying 15 Hansa 2.3 Hansa 303 Hansa Liberty H-boat J/22 J/24 J/70 J/80 Melges 20 Melges 24 Melges 32 Micro Platu 25 RC44 SB20 Shark 24 Soling Sonar Star Tempest Yngling

ISAF yacht classes	Class40 Farr 30 (Mumm 30) Farr 40 IMOCA 60 J/111 International Maxi Association Soto 40 Swan 45 Swan 60 TP 52 X-35 X-41

ISAF multihull classes	A-Class Dart 18 Formula 16 Formula 18 Hobie 14 Hobie 16 Hobie Dragoon Hobie Tiger Hobie Wildcat Nacra Infusion SL 16 Topcat K1 Tornado Viper F16

ISAF windsurfer classes	Formula Experience Formula Windsurfing Funboard Kona Mistral Raceboard RS:One Speed Windsurfing Techno 293

ISAF kiteboarding classes	International Kiteboarding Association

International Radio Sailing Association classes	10 rater A Class Marblehead One Metre

Former ISAF classes	11:Metre One Design 29erXX Aloha Buzz C-Class Division I Division II Division III Elliott 6m Farr 45 Farr Maxi One Design Hobie 17 Hobie 18 IOD ISO Laser Vago Lechner A-390 Mistral Junior Mumm 36 Nacra F18 Open 50 ORMA 60 Sydney 40 Ultimate 20 Windglider X-99

Sailing dinghy, Sharpie and Skiff classes

Dinghies under 10 ft	Frog Cape Cod Frosty El Toro Fatty Knees Fly Holdfast Trainer Manly Junior Minto Naples Sabot O'pen BIC Optimist P Class Pelican Puddle Duck Racer Sabot Starling Tadpole Topper Topaz Taz Turnabout Zoom 8

Dinghies under 15 ft	10ft Skiff 12 foot dinghy 125 ("One-twenty-five") 12ft Skiff 13ft skiff 29er 29erXX skiff 2000 3000 405 ("Four-oh-five") 420 Access Liberty Adventuress ASC Astus 14.1 Australian Sharpie B14 Banshee Beetle Cat Beneteau Wizz Bermuda Fitted Dinghy Blaze Blue Jay Bonito Bosun British Moth Butterfly Buzz Byte Cadet Cherokee Cherub C-Lark CL 14 Comet Coypu Dabchick Daring Dart Enterprise Escape Europe Envy Extra Farr 3.7 Finn Firefly Flying Ant Flying Eleven Flying Junior Force 5 GP14 Graduate Gull Heron Idle-along IDRA14 International Twelve International 14 Javelin (NZ) Javelin (US) Jet 14 Jollyboat (NZ) Lark Laser Standard Laser 2 Laser 3000 Laser 4.7 Laser 5000 Laser Funboat Laser Pico Laser Radial Laser Vago Laser Vortex Lido 14 Marlin Merlin Rocket MG14 Miracle Mirror Moth Musto Performance Skiff National 12 NS14 OK Dinghy O'pen BIC Otter Pacer Pegasus Penguin Phantom RS Feva RS Q'Ba RS Tera RS Vareo RS100 RS200 RS300 RS400 RS500 RS600 RS700 RS800 Sabre Scorpion Snark Snowbird (sailboat) Solo Spiral Splash Streaker Sunburst Sunfish Tinker Star Traveller Tinker Traveller Tasar Topper Topper Topaz Topper Topaz Magno Topper Topaz Vibe Topper Topaz Xenon Twinkles 10 & 12 Vagabond Vaurien Wanderer Weta Woodpussy Zeddie Zephyr

Dinghies under 20 ft	16ft Skiff 18 foot dinghy 18ft Skiff 470 49er 505 Albacore Beaufort Invitation Buccaneer CL 16 Comet Contender Corsair Day Sailer Fireball Flying Dutchman Flying Scot French National Monotype 1924 Hornet Interlake International Canoe Jacksnipe Javelin (Europe) Jersey Skiff Jollyboat (UK) Jolly Boat JY15 Laser 4000 Laser Bahia Laser Stratos Lelievlet Lightning M 16 Mirror 16 Mutineer 15 O-Jolle Osprey Payne-Mortlock sailing canoe Pirate Precision 15 RS K6 RS Vision RS700 RS800 Salcombe Yawl Sea Bright Sea Scout Standard Boat (BP18) Snipe Spanker Texas Tornado 12m² Sharpie Thistle Topper Topaz Omega Vanguard 15 Wayfarer Windmill Windy Winkle Brig X boat Y flyer

Dinghies 20 ft or over	Highlander M 20 Norfolk Punt

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