Points of Sail

Points of sail describe the angle between a sailboat's course and the direction from which the wind is blowing. Every sailing course falls into one of several defined categories, and each requires different sail trim and crew positioning. Understanding the points of sail is one of the first and most important concepts a new sailor must learn, because it determines how the sails should be set, how the boat will behave, and what maneuvers are possible. The wind is always the reference point. Whether you are sailing on a lake, in a harbor, or across an ocean, the relationship between your boat and the wind is what defines your point of sail. Mastering this concept gives you the ability to sail efficiently to any destination, regardless of wind direction.

Directly into the wind lies the no-go zone, an area of approximately 35 to 45 degrees on either side of the wind direction where a sailboat cannot maintain forward motion. When a boat enters this zone, the sails luff and flap uselessly because the wind flows equally over both sides of the sails, producing no lift. A boat that is stuck in the no-go zone with no forward momentum is said to be in irons. Getting stuck in irons is a common beginner mistake and can be frustrating, but it is easily remedied by pushing the boom out to one side to catch the wind and allowing the boat to fall off onto a tack. Understanding the boundaries of the no-go zone is essential for planning tacks and approaching docks or mooring buoys. Different boats have different no-go zone widths; high-performance racing yachts may sail as close as 30 degrees to the wind, while cruising boats typically cannot point closer than 45 degrees.

Close-hauled is the point of sail where the boat is sailing as close to the wind as possible while still maintaining forward speed. The sails are trimmed in tight, nearly parallel to the boat's centerline, and the boat typically heels noticeably. This is the most demanding point of sail for both boat and crew, requiring constant attention to sail trim and helm position. A small change in wind direction or inattentive steering can cause the sails to luff or the boat to stall. A close reach is the next point away from the wind, roughly 60 to 80 degrees off the wind. On a close reach, the sails are eased slightly compared to close-hauled, the boat heels less, and speed often increases. Many sailors find the close reach to be the most comfortable and enjoyable point of sail because it offers a good balance of speed, stability, and the feeling of the boat working efficiently through the water.

A beam reach occurs when the wind is coming directly over the side of the boat, at approximately 90 degrees to the bow. This is generally considered the fastest and most efficient point of sail for most boats. The sails are eased to about halfway out, the boat is relatively upright, and the apparent wind is often at its strongest angle. Racing sailors and cruisers alike appreciate the beam reach for its speed and comfort. Moving further downwind, a broad reach is when the wind comes from behind and to one side, at roughly 120 to 150 degrees off the bow. On a broad reach, the sails are eased well out, the boat may begin to roll in waves, and the apparent wind decreases as the boat's own speed subtracts from the true wind speed. Broad reaching in strong winds can produce exhilarating speeds but requires careful attention to prevent an accidental jibe.

Running is the point of sail where the wind is coming directly from behind the boat, at or near 180 degrees from the bow. The mainsail is let all the way out, perpendicular to the boat's centerline, and many boats set a spinnaker or fly the jib on the opposite side from the mainsail in a configuration called wing-on-wing. Running can feel deceptively calm because the apparent wind is reduced, since the boat is traveling in the same direction as the wind. However, running carries the significant risk of an accidental jibe if the helmsperson allows the wind to cross to the wrong side of the mainsail. By the lee is a dangerous position just past dead downwind where the wind begins to come slightly from the same side as the mainsail. This makes an accidental jibe imminent, and experienced sailors avoid sailing by the lee unless they are specifically executing a controlled jibe. For each point of sail, the correct sail trim is different, and understanding these adjustments is what allows a sailor to extract maximum performance from the wind.

Proper sail trim is the key to efficient sailing on every point of sail. The general rule is that sails should be eased until they begin to luff at the leading edge, then pulled in just enough to stop the luffing. Close-hauled, the sails are pulled in as tight as possible, with the telltales on both sides of the jib streaming aft evenly. On a close reach, the sails are eased a few inches and the boat picks up speed. On a beam reach, the sails are roughly halfway out, and the jib telltales may flutter slightly on the windward side. On a broad reach, the sails are eased well out, and the mainsail traveler can be dropped to leeward. When running, the mainsail is let all the way out and the jib may be poled out on the opposite side. A useful practice technique is to sail a full circle, noting how the sail trim changes continuously as you pass through each point of sail. This exercise builds an intuitive understanding of the relationship between wind angle and sail position that is the foundation of all sailing skill.