SailTutor v2 momentum + coastlines

Position
Heading, boat speed
True wind
Point of sail, trim
Simulation speed (wind impact)
1.0×
Drop anywhere
Tip: enable Drop on click then click water, or enter coordinates and press Teleport. If you drop on land, v2 snaps to the nearest water it can find.
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How to sail this

Steer with A and D, you are turning the rudder. Trim the jib with W and S. Hold Q and use W or S to trim the mainsail. Watch the wind arrow and the “point of sail” label. If you point too close into the wind, you will stall and you will need to bear away, then trim in.

v2 change: turning uses momentum, so you carry speed into the turn instead of “freezing.” Coastlines reflect you using a world land mask, which is coarse at small-island scale.