This is the fourth in a series of Rules columns explaining the new rules that apply at marks and obstructions. This month, I complete my discussion of Rule 18, the rule that applies at almost all ...

I am not a sailor. I have been on a sailboat a couple times, helping (I hope) crew on the Columbia River in Wallula Gap, Washington. While that does not make me a sailor, I did learn at least one ...

The Courant Institute's Christiana Mavroyiakoumou, above at Central Park's Conservatory Water, and the University of Michigan's Silas Alben studied how sails behave during a wide range of tacking ...