This is still at the early stages but this effort is likely to lead to the emergence of a new one-design 2.4mR class alongside the existing development 2.4mR class. Rating formula As an open class rather than a one-design, all boat designs must meet the following formula. (all measurements in mm) L = the "corrected" length of the hull (see rule D.6.3) d = the midship girth difference (see rule D.6.4) F = the average freeboard height (see rule D.6.5) S = the total rated area of the mainsail and jib combined. Events Open World Championships Para World Sailing Championships The 2.4 metre has been used a number of times as equipment for the One-Person Technical Disabled discipline which holds an annual World Championships. Paralympics From 2000 to 2016, the 2.4 Metre was the official single-crew class boat for sailing at the Summer Paralympics although it was used in a more one-design form utilising the Norlin Mk3 design. References External links The Official site of the International 2.4mR Class Association 2.4mR (World Sailing) Malmsten Boats Charger 2.4 Super 3 Australian 2.4mR National Class Association Austrian 2.4mR National Class Association Canadian 2.4mR National Class Association Czech 2.4mR National Class Association Dutch 2.4mR National Class Association Finnish 2.4mR National Class Association French 2.4mR National Class Association German 2.4mR National Class Association Hong Kong 2.4mR National Class Association Italian 2.4mR National Class Association Norwegian 2.4mR National Class Association Swedish National Class Association UK 2.4mR National Class Association US 2.4mR National Class Association Classes of World Sailing Keelboats Development sailing classes Sailboat type designs by Peter Norlin