2.4 Metre

2.4 Metre

Class symbol
International 2.4mR
Development
Design	Development class
Boat
Crew	1
Draft	1 m (39 in) (Mark III)
Hull
Hull weight	260 kg (570 lb)
LOA	4.16 m (13 ft 8 in) (Mark III)
Beam	0.805 m (2 ft 7+3⁄4 in)
Rig
Rig type	Fractional Sloop[1]
Mast length	4.65 m (15 ft 3 in)
Sails
Upwind sail area	7.5 m2 (81 sq ft) (Mark III)
Racing
RYA PN	1250[2]
Paralympics class
[edit on Wikidata]

The International 2.4mR is a one-person keelboat. The class is a development class governed by the 2.4mR rule. The rule controlled by World Sailing (formerly known as ISAF) is one of the few classes designated as an International Class. The International 2.4mR Class rule is closely related to the International 12mR class rule that was used at the America's Cup.

While there is a small but active group of amateur or professional designers and builders around the world, around 90% of the 2.4mR boats are the commercially produced Norlin Mark III designed by Swedish yacht designer Peter Norlin. Over the years, new 2.4mR designs such as the Stradivari III, the Proton and the Super 3 have come into production.

The 2.4mR boats are primarily used for racing and the class holds highly competitive national events in many countries. World and European championships can attract as many as 100 boats at a time.

The 2.4mR is ideal for adaptive sailing since the sailor barely moves in the boat, and all settings can be adjusted from a facing forward seated position. Both hand-steering and foot-steering are possible. The boat is sailed without a spinnaker, but it is equipped with a whisker-pole that is extending outward to hold the shape of the jib when sailing downwind. The boat's capability as a truly inclusive sailing boat has been demonstrated over many years at multiple Open World Championships.