.svg)
centreboard
Sign in to saveAlso known as centerboard
thumb|280pxA centreboard or centerboard (US) is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a centreboard trunk (UK) or centerboard case (US). The retractability allows the centreboard to be raised to operate in shallow waters, to move the centre of lateral resistance (offsetting changes to the sailplan that move the centre of effort aft), to reduce drag when the full area of the centreboard is not needed, or when removing the boat from the water, as when trailering. A centreboard which consists of solely a pivoting metal plate is called a center
In the Vinony graph
Within Vinony's link graph, centreboard is referenced by 794 other articles, and connects out to sail, anchor and sailing ship.
It sits within the topics Nautical terminology, Sailboat components and Sailing ship components.
Its subject is documented across 19 Wikipedia language editions.
~5 min read
Encyclopedic overview
6 sectionsContents
- General
- History
- Purpose
- How it works
- See also
- References
thumb|280pxA centreboard or centerboard (US) is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a centreboard trunk (UK) or centerboard case (US). The retractability allows the centreboard to be raised to operate in shallow waters, to move the centre of lateral resistance (offsetting changes to the sailplan that move the centre of effort aft), to reduce drag when the full area of the centreboard is not needed, or when removing the boat from the water, as when trailering. A centreboard which consists of solely a pivoting metal plate is called a centerplate; the term "centreboard" may refer to either a wooden or a metal pivoting retractable foil. A daggerboard is similar but slides vertically rather than pivoting.
The analog in a scow is a bilgeboard: these are fitted in pairs and used one at a time.
Excerpted from Wikipedia’s “centreboard” article, available under the CC BY-SA 4.0 licence.