gripe

A ship gripes when it has a persistent tendency to come up into the wind, or luff, despite the helmsman's efforts to keep it on course. When sailing close-hauled (as close to the wind as the vessel can point), a ship that gripes demands constant helm correction; the wheel or tiller must be held hard over to prevent the bow from swinging toward the wind. This is not a momentary weather helm but a chronic condition requiring continuous active steering.

Gripe is primarily a hull design problem, though trim and loading affect its severity. A ship gripes when its underwater body shape favors lift toward the leeward side rather than resisting it. This happens when the center of lateral resistance sits too far aft relative to the center of effort in the sails, or when the hull's buttock lines are too full aft and too fine forward. Older wooden sailing ships and some modern yachts with certain designs are notorious gripers. Heavy weather or excessive heel can worsen the condition.

Remedies at sea are limited. Adjusting sail balance, changing ballast distribution, or altering trim by moving cargo or water can reduce gripe. Some vessels require a corrective helm angle of 10 to 20 degrees or more just to maintain course, which increases leeway, slows the ship, and exhausts the crew. In the worst cases, a ship that gripes severely may be essentially uncontrollable when beating to windward in fresh winds.

The term likely comes from the grip or clutch of the wind's force on the vessel, or from the old sense of gripe meaning to cause distress or complaint: a griping ship certainly produces both. It contrasts with weather helm, which is temporary and manageable, and with a lively or handy ship that tracks steadily without excessive helm. Shipwrights and naval architects recognize gripe as a sign of fundamental imbalance in the design, one that cannot be fully cured by sailing technique alone.