dagger board


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dagger board

[′dag·ər ‚bȯrd]
(naval architecture)
A device used in a sailing vessel to increase the area of lateral resistance; it is a narrow metal flat or wooden board that slides up and down in the trunk, which extends from inside the hull to the bottom.
References in periodicals archive ?
Has a canting keel, dagger boards and the latest in rigging.
It has also helped us retro-fit splayed rudders to work more efficiently with our forward asymmetric dagger boards," owner Slade said after his Fastnet win in August.
Set appendage configuration--two dagger boards and one or two rudders (Reduce research and development costs and retain the characteristics of ocean racing boats)