- At this point, the righting force will disappear, replaced by a turning moment in the opposite direction.
- This system, while not very attractive, does allow significant gains in righting force with no modifications to the hull.
- Under these conditions a " righting force " ( a turning moment ) acts on the vessel to push it back toward the level position.
- In some high-performance racing yachts, water ballast or the angle of a canting keel can be changed to provide additional righting force to counteract heeling.
- The goal is to create the fastest boat by mounting the largest possible area of sails atop the heaviest amount of underwater weight ( to provide a " righting force " that brings the boat upright, driving it forward ) and then attaching all that to a lightweight hull that creates the least amount of drag in the water.