Forces on sails apart, which generally prevents heeling. Each sailing craft is a system that mobilizes wind force through its sails—supported by spars and rigging—which provide motive power and reactive force from the underbody of a sailboat—including the keel, centerboard, rudder or other underwater foils—or the running gear of an ice boat or land craft, which allows it to be kept on a course. Without the ability to mobilize reactive forces in directions different from the wind direction, a craft would simply be adrift before the wind. Accordingly, motive and heeling forces on sailing craft are either "components of" or "reactions to" the
Sporting-Sails Sporting-Sails Sporting-Sails is an outdoor product company specializing in downhill and downwind innovations for skateboarding, skiing, snowboarding, and surfing. The equipment lines are catered towards skateboarders, mountaineers, skiers, longboarders, snowboarders, surfers, and endurance athletes. The company sponsors professional athletes from the worlds of long distance skateboarding, surfing, skiing, snowboarding, and longboarding (including Adam Colton and Long Treks on Skate Decks). Spring 2006, Mill Valley, California born brothers Nick and Billy Smith were looking for fireworks and schnapps in the attic of their grandfather's (Bill Smith Jr.) home in Vail, Colorado, when they discovered his "Ski-Klipper" invention from the late 1960s.