A point of sail is a sailing craft's direction of travel under sail in relation to the true wind direction over the surface. The principal points of sail...

the wind or point of sail. On points of sail where it is possible to align the leading edge of the sail with the apparent wind, the sail may act as an...

stationary flag) is called a point of sail. Conventional sailing craft cannot derive wind power on a course with a point of sail that is too close into the...

direction and speed over the surface) is called the point of sail. The speed of the craft at a given point of sail contributes to the "apparent wind"—the wind...

claw sail.: 28–29 : 88–89  Modern wind tunnel studies of sail types show that crab sail performance improves over Bermuda rigs, as the point of sail deviates...

beyond the scope of this article. Sails may be classified as either triangular, which describes sails that either come to one point of suspension at the...

the sail angle is away from the centerline of the boat. The boom also serves as an attachment point for more sophisticated control lines. Because of the...

"Discussion," below); the point of sail into the wind is called "close hauled". Sailing into the wind is possible when the sail is angled in a slightly...

aback (of a sail) Filled by the wind on the opposite side to the one normally used to move the vessel forward. On a square-rigged ship, any of the square...

the spanker is the sail on the mast nearest the stern. The spanker is a small sail, but as it is so far aft of the balance point of the hull, it has strong...