Specifications Under Current Rules
Class Symbol
Crew	Two (single trapeze)
LOA	5050 mm (16 ft 5 in)
LWL
Beam	1880 mm (6 ft 2 in)
Draft	1066 mm (3 ft 6 in)
Hull weight (with fittings)	127. In Sailing, the trapeze refers to a wire that comes from a point high on the mast, usually where the shrouds are fixed to a hook on the crew member's harness A yacht is a recreational boat It designates two rather different classes of Watercraft, sailing and power yachts Waterline length, length at the waterline or length waterline (abbreviated to LWL) is measurement of Ships and Boats The term The beam of a ship is its width at the widest point or at the mid-point of its length The draft (or draught) of a ship's hull is the vertical distance between the Waterline and the bottom of the hull ( Keel) with the thickness A hull is the body of a Ship or Boat. It is a central concept in floating vessels as it provides the Buoyancy that keeps the vessel from sinking 4 kg (280. 9 lb)
Main and Jib area	14 m2 (151 ft2)
Spinnaker area	26 m2 (280 ft2)
DPN	79. A mainsail is the most important sail raised from the main (or only mast of a sailing vessel A jib (also spelled jibb) is a triangular Staysail set ahead of the foremost mast of a sailing boat A spinnaker is a special type of Sail that is designed specifically for Sailing off the wind from a reaching course to a downwind i The Portsmouth Yardstick (PY or Portsmouth handicap scheme is a system of Handicapping used in Yacht racing. 9
PHRF	149. Performance Handicap Racing Fleet ( PHRF) is a Handicapping system used in Yacht racing. 4

The International 505 is a one-design high-performance two-person monohull planing centerboard dinghy. One-Design is a Racing method where all Vehicles or Boats have identical or very similar designs or models A monohull is a type of boat having only one hull, unlike Multihulled boats which can have two or more individual hulls connected to one another centreboard is a retractable Keel which pivots out of a slot in the hull of a Sailboat, known as a centerboard trunk (US or case A dinghy is a type of small Boat, often carried or towed by a larger vessel Utilizing a trapeze for the crew, it is a physically demanding boat. In Sailing, the trapeze refers to a wire that comes from a point high on the mast, usually where the shrouds are fixed to a hook on the crew member's harness

The genesis of the class began in 1953 with the creation of the 'Coronet' dinghy designed by John Westell. Year 1953 ( MCMLIII) was a Common year starting on Thursday (link will display full calendar of the Gregorian calendar. This sailboat competed for the two-person performance dinghy classification for the Olympics at the International Yacht Racing Union (IYRU) trials of 1953 held at La Baule, France. The Olympic Games is an international Multi-sport event established for both summer and winter games The International Sailing Federation (ISAF is the world governing body for the sport of Sailing, particularly yacht, dinghy, Windsurfing and La Baule-Escoublac, commonly referred to as La Baule, is a commune in the Loire-Atlantique département of France. In 1954, the Caneton Association of France requested John Westell to make significant changes to the design to suit their needs. Year 1954 ( MCMLIV) was a Common year starting on Friday (link will display full 1954 Gregorian calendar) This reduced the overall length, weight and reduced the sail area to become the 505, so named for its length of 5. 05 meters. The class achieved international status with the IYRU in 1955. Year 1955 ( MCMLV) was a Common year starting on Saturday (link displays the 1955 Gregorian calendar)

The class is a popular international class and is actively raced in 18 countries around the world. World championships are held every year at rotating by continent locations around the world, and attract in excess of 100 boats on the start line. At the 2005 world championships held in Warnemünde, Germany there were 171 boats. Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. Warnemünde (vaʁnəˈmʏndə meaning Warnow mouth is a sea resort and district of Rostock in Mecklenburg-Vorpommern, situated on the Baltic Sea in the

The design of the boat's hull shape and sailplan are tightly controlled, while the spars, foils and disposition of the rigging is open. In Sailing, a spar is also know as a round pole of wood or Metal used on a Sailing ship. This allows the boats to be set up to the needs of the sailor, rather than controls established by the class association, resulting in a high level of adaptability to sailing styles. There are a number of successful sail/layout combinations.

As of 2005, there are 14 known builders throughout the world. Construction materials range from fiberglass/polyester to carbon fiber, with just about every conceivable construction material used at one time or another within the class. Modern boats with modern materials are capable of remaining competitive at the international level for ten years or more. As of 2007, over 8,900 505s had been built since 1954.

Various modifications to the accepted design outside of the class rules have been conducted at different points in history. Such modifications have included setting up a double trapeze system, installation of a bowsprit, and inclusion of an asymmetric spinnaker. The most recent of these modifications have been made by Mike Arnold of the Deben Yacht Club in Woodbridge, UK, who has been experimenting with a 505 hull and rig modified to have a higher boom (i. Woodbridge is a town in Suffolk, East Anglia, England. It is in the south east of England not far from the coast The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located e. a cut down main) and an asymmetric spinnaker that flies from a moveable bowsprit. This may be the genesis of a new class known as the "Alto".

External links

• Official class website
• measurement rules
• 2007 World Championships
• review
• Sandgate Yacht Club 505 Sailing
• 505 Class Sailing Race Results Website
• 505 Class Sailing Race Results Website

Other classes of dinghy

The International Sailing Federation (ISAF is the world governing body for the sport of Sailing, particularly yacht, dinghy, Windsurfing and The designation International Class may be granted by the International Sailing Federation (ISAF to classes of sail boat that offer a high standard of international competitive The International 14 is 14-foot double-handed dinghy. The class originated in England in the early part of the 20th century The 29er is a Skiff designed by Julian Bethwaite and first produced in 1998 The 470 is a double-handed Monohull planing Dinghy with a Centreboard, Bermuda rig, and center sheeting The 49er is a newer One-design class of small sailing dinghy. The International Contender is a single-handed high performance sailing Dinghy, designed by Bob Miller latterly known as Ben Lexcen, (Australia in 1967 Specifications The Enterprise has the following specifications Designer Jack Holt (1956 Length Over All|: 13 ft 3 in (4 The Europe is a one-person Dinghy designed in Belgium in 1960 by Alois Roland as a class legal Moth dinghy. Design Changes Although the Finn hull has changed little since 1949 there has been other developments in controlling the sails Originally designed by Peter Milne in 1962 the Fireball is a One-design high-performance sailing dinghy. The Flying Dutchman (FD is a high-performance class of racing dinghy The International Flying Junior or FJ is a Sailing dinghy which was originally designed in 1955 in Holland by renowned boat designer Van Essen and Olympic sailor The International Laser Class sailboat, also called Laser Standard and the Laser One is a popular One-design class of small sailing dinghy The Laser 47 is a One-design dinghy class in the Laser series See also Blue Jay Sailboat a smaller version of the lightning The Mirror is a highly successful pram Dinghy, with more than 70000 built Moth Beginnings The current International moth is a result of merging two separate but similar historical developments The OK Dinghy is an international class sailing dinghy designed by Knud Olsen in 1956 The Snipe is a foot 2 person one design racing Dinghy. Designed by William Crosby in 1931 it has evolved into a modern tactical racing dinghy with fleets around the world Racing There are regional continental and world championships every year Background The Topper is a one-design boat with a large international following it is also an International class by the ISAF and is an approved youth class of the The Vaurien is a Dinghy designed by Jean-Jacques Herbulot in 1951 and presented in the Boat show in Paris in 1952 Manufactures The Zoom 8 is currently produced in Denmark(http//www

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