Sheave

The grooved wheel inside a block or at the head of a mast over which a line runs.

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Related S-terms

Starlink
A low-Earth-orbit satellite broadband system widely adopted on cruising and commercial ves…
Secure
To tie down, lash, or make fast.
Stanchions
Vertical metal posts bolted to the deck edge that support the lifelines.
Spar
Any pole that supports a sail — mast, boom, gaff, sprit, yard, whisker pole, or spinnaker …
Stern Spring
A dockline led from the stern forward along the dock, preventing the boat surging astern.
Sheet
A line used to trim a sail — e.g. mainsheet, jib sheet, spinnaker sheet.
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