The International 420 is a two person, single trapeze planing dinghy. There are 56,000 worldwide and it is the most popular youth training boat worldwide. It is the ISAF Youth World Championship boat. It has three sails and one of the only group of boats left in the U.S. is owned by CISA, who charter them to Youth World teams and periodically hold clinics in them. The I-420 is a technical boat in terms of rig tuning, sail set up and boat handling. There are few youth boats that can offer so many technique and technical learning opportunities to young sailors. Unlike many other youth boats, what kids learn in the I-420 is very much transferable to other boats. Specifications: Length 4.2 m Beam 1.63 m Mast 6.26 m Sails Main 10.25m2, Jib 2.8 m2, Spinnaker 9 m2. Bare hull weight 80 kg min Sailing weight 100 kg min The ideal competitive combined crew weight is 17 to 23 stone (110-145Kg).