How do you trim a sail head?
How do you trim a sail head? Ease tension until the sail just begins to luff and then trim just enough to stop luffing or ease until the middle telltales flow straight aft. If the telltales hang down or if the leeward telltale spins, the sail is over-trimmed. For perfect trim on a reach, ease in every puff. How do you trim a sail? Learning to trim sails upwind correctly is simple: just let the sail out ("sheet out") until the sail is flapping in the wind like a flag, and then gradually sheet back in until the sail develops...