With an estimated 56,000 boats built, the International 420 is one of the most popular centerboard dinghies in the world. The Sunfish, with more than 300,000 built, and the Laser, with over 200,000 built, have sold in higher numbers, but the International 420 is an animal of a different stripe. All three boats are small and light enough to plane, but the Sunfish and the Laser are designed for one-person sailing with a single sail, while the 420 is a two-person boat with a mainsail, jib and spinnaker.
The 420 was born in 1959 when Christian Maury, a French engineer and sailing enthusiast, joined forces with Lucien Lanaverre, owner of the Lanaverre boat building company that manufactured cold-molded 505 dinghies. Maury was keenly interested in fiberglass as a building material…