The Finn dinghy is a single-handed, cat-rigged sailboat, and an Olympic class for men's sailing. Since its debut at the 1952 Summer Olympics in Helsinki, the Finn has featured in every summer Olympics, making it the longest serving dinghy in the Olympic Regatta and one of the most prolific Olympic sailboats,[3] currently filling the slot for the Heavyweight Dinghy. The Finn is a physically demanding boat to race at the highest levels, especially since the class rules now allow unlimited boat rocking and sail pumping when the wind is above 10 knots.[4]