The tendency of a sailboat to turn to leeward in a strong wind when there is no change in the rudder's position. This is the opposite of weather helm and is the result of a dynamically unbalanced condition.

Related Terms

TO HAUL

To change the course of a sailing vessel to bring the wind farther forward, usually used with up, such as haul up.

HEAD WIND

Wind from ahead of the vessel

HARMATTAN

The dry, dusty trade wind blowing off the Sahara Desert across the Gulf of Guinea and the Cape Verde Islands. Sometimes called the DOCTOR, because of its supposed healthful properties.

GUST

1. A sudden brief increase in the speed of the wind of more transient character than a squall, and followed by a lull or slackening of the wind. 2. The violet wind or squall that accompanies a thunder- storm.

CHILL FACTOR

Calculated number based on temperature and wind velocity.

TRUNNION BEARING

A bearing used as a pivot to swivel or turn an assembly.

ICE RIND

A brittle shiny crust of ice formed on a quiet surface by direct freezing or from grease ice, usually in water of low salinity. Of thickness to about 5 centimeters, ice rind is easily broken by wind or swell, commonly breaking into rectangular pieces.

ICE FOG

Fog composed of suspended particles of ice, partly ice crystals 20 to 100 microns in diameter but chiefly, especially when dense, droxtals 12 to 20 microns in diameter. It occurs at very low temper- atures, and usually in clear, calm weather in high latitudes. The sun is usually visible and may cause halo phenomena. Ic

HURRICANE

Wind of force 12 (64 knots and higher or 73 miles per hour and higher) on the Beaufort wind scale.

INDIAN SUMMER

An indefinite and irregular period of mild, calm, hazy weather often occurring in autumn or early winter, especially in the United States and Canada.

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