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
Sails of the South Tipner Bridge. The Sails are illuminated in violet at night. In addition, there are bird roosting sites in nearby Tipner Lake. The sails of the south was part of the redundant but later revived gateway project, this and the refurbishment of the nearby bridge was the only parts of the project to be realised. The bridge intended to take the M275 over a roundabout of an unbuilt junction roundabout. In 2006 vandals smashed 21 of the 24 lights that light up the structure. As of 14/07/2015, they are yet to be fixed. Sails of the South The Trimast, commonly referred