Outboard Racing emerged in the United States in 1924, and by 1948, stock outboard regattas were being staged under the sanctioning body called American Power Boat Association. Because of its competitive nature, Stock Outboard grew considerably through the 1950's and 60's, becoming the most popular form of boat racing. Its popularity continues through the 80's and 90's because the equipment is affordable and easily available to all. It has become worldwide, branching into Japan, Mexico, Ecuador, Canada and South Africa.
Ninety percent of all Stock Outboard racing is done on a regional basis with theultimate goal of becoming a National Champion. The National Championships are normally held in early August, bringing top competitors and their families to a central location for great fun, excitement, and competition. Beyond the Nationals there is a World Championship held specifically for the OSY 400 class (CSH class in Stock Outboard). The US team is chosen from both Divisional and National Champions.
The Stock Outboard category is made up of eighteen classes. Each class is defined by a specific minimum weight requirement, engine horsepower, and hull design. The three basic hull designs include hydroplanes,runabouts, and tunnel hulls.
Runabouts are monoplane style hulls which ride on the water's surface, requiring body english and technique to drive. Boats are driven in a kneel-down position.
Hydroplanes are designed for optimum speed and ride on a cushion of air. They are also driven in a kneel down position.
Tunnel boats are catamaran style hulls in which the driver sits down to drive. They are designed to race in adverse water conditions.
The engines that serve as the powerhouses for these specially designed hulls range from 15 to 45 cubic inches and propel them through the water at speeds ranging from 35 to 85 mph.