The J/24 is a one-design racing keelboat and the first J/Boats product. It achieved global success, with more than 5,200 built, though it is now out of production. It is recognised by World Sailing and supports active competitive fleets and championships worldwide, including the J/24 World Championship.
The first J/24 was built in 1976 by then amateur designer Rodney Johnstone. At a time when sailing was dominated by the International Offshore Rule, the boat was designed to compete under a variety of handicaps, including the MORC. It was immediately successful in racing. Rodney partnered with his brother Bob (then a marketing vice-president at AMF) to form J/Boats. Tillotson-Pearson put the boat into production. With a low price, astute marketing, and heavy promotion, 1,200 were sold in the first two years. and a vinylester outer skin.
Design
thumb|left|Race in the 2007 J/24 European Championship
Rig
The rig is fractional with a backstay adjuster. The lower shrouds attach aft of the keel-stepped mast and are adjusted along with the backstay. Tracks are provided for both the genoa and jib sheets.
Hull
The rudder is hung on the plumb transom, and controlled by a tiller. It is equipped with a fixed outboard bracket. Class rules specify one outboard motor of at least 12 kg. It displaces and has a hull speed of . The fixed fin keel is bolted on and weighs 950 pounds IJCA is a "not-for-profit" organization. There are 136 active fleets in the US.