The displacement or displacement tonnage of a ship is its weight . As the term indicates, it is measured indirectly, using Archimedes' principle , by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons . Today, tonnes are more commonly used.
21-993: RS 21 Keelboat Development Designer Jo Richards Guy Whitehouse RS Sailing Location British Name RS 21 Keelboat Boat Displacement 650 kg (1,430 lb) Draft 1.38 m (4.5 ft) Hull General Monohull Construction Eco-Friendly Composite LOH 6.67 m (21.9 ft) LWL 6.29 m (20.6 ft) Beam 2.20 m (7.2 ft) Engine type Outboard Hull appendages General Bulbed Keel / Single Rudder Keel/board type Lifting Keel Rig General Sloop Sails Mainsail area 16.2 m (174 sq ft) Jib / genoa area 8.4 m (90 sq ft) Gennaker area 40 m (430 sq ft) Racing Rating 0.949 IRC [ edit on Wikidata ] The RS 21 , first launched in 2018 by RS Sailing and
42-618: A combination of discipline, equipment, gender and sometimes categories. These criteria are defined by the race purpose. The following are the main disciplines: Common categories of equipment include the following: dinghies , multihulls , keelboats , sailing yacht , windsurfers , kiteboarding and radio-controlled sailboats . Within these categories normally specific class or rating system are used. The majority of sailing events are "open" events in which males and females compete together on equal terms either as individuals or part of team. Sailing has had female only World Championships since
63-456: A large section of the sport. Almost any boat can be sailed though some are more suitable for larger ranges of disabilities or specific categories of impairment. World Sailing is also responsible for disabled sailing worldwide under the guidance of its own brand Para World Sailing. This is since the merger of International Association for Disabled Sailing (IFDS) in November 2014, and re-forming of
84-1018: A result, an International Conference of Yacht Measurement was held in London in January and June 1906, at which the Metre Rule was developed. This group went on to adopt a formal Constitution after a meeting at the Yacht Club de France in Paris on 14 October 1907 which is seen as the formation date of the International Yacht Racing Union. On 5 August 1996, the IYRU changed its name to the International Sailing Federation (ISAF). On 14 November 2015, ISAF changed its name to World Sailing. Competitive sailing regatta contain events which are defined by
105-425: A vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage" ) to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage : net tonnage and gross tonnage . The process of determining
126-427: A vessel's displacement begins with measuring its draft . This is accomplished by means of its "draft marks". A merchant vessel has three matching sets: one mark each on the port and starboard sides forward, midships, and astern. These marks allow a ship's displacement to be determined to an accuracy of 0.5%. The draft observed at each set of marks is averaged to find a mean draft. The ship's hydrostatic tables show
147-1564: Is a one design keelboat . Design for between 3 and 5 people to race competitively. The class gained World Sailing class status in 2021 and held it first recognised World Championship. With the initial fleet in Europe being joined by fleets in North America the class continues to grow. A detuned "club" version of the boat is available for sale training and fleet charter use. World Championships [ edit ] Games Gold Silver Bronze Ref. 2022 CRO 40 Boats ITA225 [REDACTED] Gianluca Grisoli ( ITA ) [REDACTED] Andrea Casale ( ITA ) [REDACTED] Fabio Gridelli ( ITA ) [REDACTED] Giorgio Tortarolo ( ITA ) ITA244 [REDACTED] Giovanni Meloni ( ITA ) [REDACTED] Niccolo Bianchi ( ITA ) [REDACTED] Camilla Cordero di Montezemolo ( ITA ) [REDACTED] Pietro Negri ( ITA ) ITA243 [REDACTED] Martin Reintjes ; ( ITA ) [REDACTED] Francesco Rubagotti ( ITA ) [REDACTED] Giulio Desiderato ( ITA ) [REDACTED] Daniele Cassinari ( ITA ) References [ edit ] ^ Admin, Website (January 18, 2018). "RS21 Club Keelboat Launch at Dusseldorf Boat Show" . RS Sailing,
168-443: Is composed of "Member National Authorities" (MNA's) from over 140 countries all of whom have the right to make submissions to determine World Sailing's policies. Persons with a physical impairment who are interested to learn to sail are encouraged to locate their national World Sailing Member National Authority (MNA), Disabled Sports Organization, or visit the local sailing club, as World Sailing seeks to people with disabilities into
189-570: Is done with computers. Displacement is usually measured in units of tonnes or long tons . There are terms for the displacement of a vessel under specified conditions: World Sailing World Sailing ( WS ) is the international sports governing body for sailing ; it is recognized by the International Olympic Committee (IOC) and the International Paralympic Committee (IPC). The creation of
210-485: The 1970s to encourage participation and now host more than 30 such World Championship titles each year. For the 2016 Olympics, compulsory mixed gender in the event was added for the first time. In addition the following categories are sometimes applied to events: World Sailing is now most familiar to sailors for defining the Racing Rules of Sailing (RRS), the international standard used to define competition rules and
231-628: The Classes used for the Olympic Games, World Sailing arrange the following events: Sailing as an equipment based sports allows one of the largest ranges of paralympians to compete under equal terms. Sailing was included for the first time in the Atlanta 1996 Paralympic Games program as a demonstration event. It became a full medal sport at the Sydney 2000 Paralympic Games up to 2020 were IPC removed sailing from
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#1732880636965252-586: The International Yacht Racing Union (IYRU) began in 1904, when Major Brooke Heckstall-Smith AINA, then Secretary of the Yacht Racing Association (now the Royal Yachting Association ) wrote to the Yacht Club de France , pointing out the desirability of holding a conference for the purpose of devising an International Rule of Measurement for Racing Yachts acceptable to all European countries. As
273-571: The World Sailing Committee later rebrand Para World Sailing. The rational was given as follows: "The creation of a single governing body for Member National Authorities (MNAs) and sailors will better serve the needs and interests of sailors with disabilities, and provide consistency within the sport, from relationships with the World Anti-Doping Agency (WADA) to technical support and operational efficiencies." The IFDS Foundation
294-420: The corresponding volume displaced. To calculate the weight of the displaced water, it is necessary to know its density. Seawater (1,025 kg/m ) is more dense than fresh water (1,000 kg/m ); so a ship will ride higher in salt water than in fresh. The density of water also varies with temperature. Devices akin to slide rules have been available since the 1950s to aid in these calculations. Presently, it
315-551: The first six inductees for the ISAF Sailing Hall of Fame. At the 2015 annual conference in Sanya , China, there were seven further inductees. The Beppe Croce Trophy is presented to an individual who has made an outstanding voluntary contribution to the sport of sailing. The roll of honour is an impressive one, including multiple Olympic medallists, rules gurus and designers, and all have dedicated an outstanding amount of time to
336-527: The following awards together with service medals. The main annual award the " Rolex World Sailor of the Year " that is sponsored by ROLEX in the following categories: When a crew of two or three people is nominated, the awarded is presented to the entire crew. When larger crews win the award, normally only the skipper is recognised. On 5 November 2007 in Estoril , Portugal, the International Sailing Federation announced
357-593: The framework within which racing is conducted. Para sailing regattas for para sailors likewise follow the World Sailing rulebook with a minor change to permit things like powered adaptations. Strict classification requirements are enforced in the Paralympic Games for fair competition in Paralympic-class keelboats. The key documents under control of World Sailing are: Like all sports federations, World Sailing
378-426: The paralympic program. Work continues to get sailing reinstated for the 2028 Paralympics. Each World Sailing class is entitled to hold a world championship The following World Championships are held: Sailing is a versatile sport that can accommodate many types of disability primarily because it is equipment based. Sailing is one of the few sports where disabled sailors compete on equal terms to able body sailors in
399-530: The sport. The federation recognizes over 80 classes which are each entitled to hold world championships. World Sailing is responsible for administration of the Olympic Sailing Regatta . Sailing (called yachting in the early years) has been a mainstay of the modern summer Olympic games since 1896, omitted only from the 1904 summer games in St. Louis. To help encourage high level international competition in
420-4261: The world’s largest small-sailboat manufacturer . ^ "RS21 World Championship at JK Briva Biograd - Overall" . www.sail-world.com . ^ "rs 21 launch - Search" . www.bing.com . ^ "RS21 WORLD CHAMPIONSHIPS 2022 | RS21 Class Association" . www.rs21sailing.org . ^ "RS 21 WORLD CHAMPIOSHIP [ sic ] 2022" . External links [ edit ] Main Dealer RS Sailing International RS 21 Classes Association UK RS Association v t e Classes of World Sailing Current Olympic classes 470 49er 49er FX Finn IQFoil Laser Standard Laser Radial Nacra 17 World Sailing centreboard classes 29er 420 505 B14 Byte Cadet Contender Enterprise Europe Fireball Flying Dutchman GP14 International 14 International FJ Laser 4.7 Lightning Mirror Moth Musto Skiff O'PEN Skiff OK Dinghy Optimist RS Feva RS Tera RS100 RS500 Snipe Splash Sunfish Tasar Topper Vaurien Zoom 8 World Sailing keelboat classes 2.4 mR 5.5 m 6 mR 8 mR 12 mR Dragon Etchells FarEast 28 Flying Fifteen Hansa 2.3 Hansa 303 Hansa Liberty H-boat International One Design 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 Viper 640 Yngling World Sailing yacht classes Class40 ClubSwan 50 Farr 40 IMOCA 60 J/111 Maxi Soto 40 Swan 45 TP 52 X-35 X-41 World Sailing multihull classes A-Class Dart 18 Formula 16 Formula 18 Hobie 14 Hobie 16 Hobie 17 Hobie Dragoon Hobie Tiger Hobie Wildcat Nacra 15 Nacra 17 Nacra F18 Infusion Nacra 20 Carbon M32 SL 16 Topcat K1 Tornado Viper F16 World Sailing windsurfer classes Formula Experience Formula Windsurfing Funboard Kona Mistral Raceboard RS:One Speed Windsurfing Techno 293 IQFoil World Sailing kiteboarding classes IKA Open Formula Kite IKA Twin Top Racing IKA Twin Top Freestyle IKA Twin Top Kitefoil IRSA remote-control classes 10 rater A Class Marblehead One Metre Former World Sailing classes 11:Metre One Design 29erXX Aloha Buzz C-Class Division I Division II Division III Elliott 6m Farr 30 (Mumm 30) Farr 45 Farr Maxi One Design Hobie 17 Hobie 18 IOD ISO Laser 2 Laser Vago Lechner A-390 Mistral Junior Mumm 36 Nacra F18 Open 50 ORMA 60 Sydney 40 Ultimate 20 Windglider X-99 v t e RS Sailing Current dinghies 2000 RS100 RS200 RS400 RS500 RS700 RS800 RS Aero RS Feva RS Neo RS Quest RS Tera RS Vision RS Vareo RS Venture RS Zest Current keelboats RS Venture Connect RS Elite RS 21 Current multihulls RS Cat14 RS Cat16 Old models RS Quba RS300 RS600 RS600FF RS900 RS K6 49er (dinghy) Retrieved from " https://en.wikipedia.org/w/index.php?title=RS21&oldid=1158382278 " Categories : Keelboats 2010s sailboat type designs Classes of World Sailing World championships in sailing Sailboat type designs by Paul Handley Sailboat types built by RS Sailing Displacement (ship) Ship displacement varies by
441-546: Was dissolved during the 2015 Annual Conference in Sanya, China. The Disabled Sailing Committee then re-branded as the Para World Sailing Committee. From 1906 to 1946 a chairman was elected from time to time to orchestrate the annual meetings. Vice presidents have been elected since 1955. There are four types of race officials used to conduct sailing events recognised by World Sailing as follows: World Sailing hold
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