Bitts are paired vertical wooden or metal posts mounted either aboard a ship or on a wharf, pierorquay. The posts are used to secure mooring lines, ropes, hawsers, or cables.[1] Bitts aboard wooden sailing ships (sometime called cable-bitts) were large vertical timbers mortised into the keel and used as the anchor cable attachment point.[2] Bitts are carefully manufactured and maintained to avoid any sharp edges that might chafe and weaken the mooring lines.[3]
Mooring lines may be laid around the bitts either singly or in a figure-8 pattern with the friction against tension increasing with each successive turn. As a verb bitt means to take another turn increasing the friction to slow or adjust a mooring ship's relative movement.[1]
Mooring fixtures of similar purpose:
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including limited use*, outdated† | |||||||
| Rigs (jury rigging) |
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| Sails (sailing rigs) |
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| Spars |
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| Rigging |
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