1 Litre ("Y" class) hydroplanes are small, light and lightning quick, racing to speeds over 105 mph. While supercharging is not allowed, other modifications are encouraged. Engines are automotive or marine based, 2 or 4-cycle style. Maximum limit of 2-cycle is 1160 cc and maximum limit of 4-cycle is 1315 cc. The most common engines are from 2-cycle personal water crafts boats!
Get Ready to Fly
When you hear the roar of automotive engines and catch a glimpse of giant roostertails, chances are pretty good that inboards are on the water. As the largest category in the APBA, Inboard racing classes include both runabouts and hydroplanes that are fast, fun and LOUD. Classes span from wild Jersey Speed Skiffs (70mph) to supercharged 1,500 horsepower Grand Prix Hydroplanes (170 MPH). The minimum age for racing in this exciting category ranges from 14 to 21.
Inboard racing requires an unmatched level of teamwork and professionalism, as well as a family atmosphere with life long bonds between owners, drivers and crew members; and that is exactly what powerboat racing is all about.