Points of sail, explained

A point of sail is simply your boat's angle to the wind. ASA 101 expects more than naming the picture: you need to select a tack, hold a course, head up, bear away, and trim as the wind angle changes.

wind no-go zone (~45° each side) close-hauled close-hauled beam reach beam reach broad reach broad reach run

Saved wind-angle lab

Saved locally in asa101.pointsOfSail.v1. It flows into Progress backup, Readiness, and Exam cram.

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Wind shift and layline game

Beginner rule: a lift lets you keep sailing toward the mark; a header usually means tack if traffic and crew are ready. Do not pinch into the no-go zone or overstand the layline just to feel safe.

Course-holding checkoff

A practical ASA 101 station for selecting and maintaining tack/course, heading up, bearing away, and sailing the basic points of sail without pinching or accidental-jibe risk. Missed stations can be queued to the drill library.

The no-go zone (in irons)

A sailboat cannot sail straight into the wind. Inside roughly 45° either side of the wind direction the sails just flap (luff) and the boat stalls. Get stuck pointing there with no steerage and you are in irons — back the jib or fall off onto a tack to escape. To make progress upwind you zig-zag across the zone, which is called beating.

Close-hauled

As close to the wind as the boat will sail — about 45° off — with the sheets hauled in tight. The boat heels the most here and the apparent wind feels strongest. If your sails luff while everything is already trimmed hard, you're pinching: bear away a few degrees.

Close reach

Between close-hauled and a beam reach. Sheets eased just a touch. This is also the classic angle for the final approach to a crew-overboard recovery, because you can luff the sails to slow down or trim to power up.

Beam reach

Wind square over the side of the boat, about 90° off the bow. Sails roughly halfway out. For most boats this is the fastest, most comfortable, most forgiving point of sail.

Broad reach

Wind over the quarter — behind you but off to one side. Sails well eased. As you head deeper downwind, stay aware of where the boom is: an unplanned jibe starts here.

Run

Wind dead astern, mainsail eased nearly all the way out. Running feels calm because the apparent wind drops, but steer attentively — one wobble past dead-downwind and the wind catches the back of the main and slams the boom across (an accidental jibe).

Wing-on-wing

Wing-on-wing is a downwind setup with the mainsail on one side and the headsail on the other. It is useful for sailing deep downwind, but it can be rolly and unstable. Keep the boat under the sail, watch for accidental jibes, and use a whisker pole only if your instructor has taught it.

By the lee

By the lee means you are running with the wind coming over the same side as the boom. That puts the main at risk of jibing unexpectedly. On the test, connect "by the lee" with downwind sailing and accidental-jibe danger.

Which tack are you on?

Every point of sail except head-to-wind also has a tack, named for the side the wind comes over. Wind over the starboard side = starboard tack, boom out to port. Wind over the port side = port tack, boom out to starboard. This matters for right of way, so examiners love it.

Trim cheat sheet

The universal rule: ease the sail until it luffs, then trim in just until it stops. For a more practical drill, use the sail trim and telltale trainer. Rough boom positions:

Point of sailAngle off the windMainsail trim
Close-hauled~45°Hauled in tight
Close reach~60–75°Eased slightly
Beam reach~90°About halfway out
Broad reach~120–160°Well eased
Run~180°Nearly all the way out

Sources

Reading about it gets you halfway. Naming the point of sail in two seconds flat is what passes the test.

Practice wind angles Practice sail trim Try the helm simulator