The Footy is a very small radio controlled sailboat whose length is a mere 12 inches (30.5cm). The hull can be made from a fiberglass mold, simply with thin sheets of plywood fitted together or 3D printed. Two servos are used, one to control the sail and one for the rudder. 

To keep competition keen, the Footy designers have proposed a set of rules to keep all the boats similar to a certain degree.