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The weight of the anchor chain can be more than that of the anchor and is critical to proper holding. Permanent moorings use large masses (commonly a block or slab of concrete) resting on the seabed. Semi-permanent mooring anchors (such as mushroom anchors ) and large ship's anchors derive a significant portion of their holding power from their ...
The line allows the anchor to be unhooked from an obstruction, such as a rock or another vessel's anchor cable, so preventing raising the anchor in the normal way. [13] anchor chain . Also anchor cable. A chain connecting a ship to an anchor. anchor detail A group of men who handle ground tackle when the ship is anchoring or getting under way ...
A chain hanging from points forms a catenary. The silk on a spider's web forming multiple elastic catenaries.. In physics and geometry, a catenary (US: / ˈ k æ t ən ɛr i / KAT-ən-err-ee, UK: / k ə ˈ t iː n ər i / kə-TEE-nər-ee) is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.
Spiga: Spiga is formed of small figure-eight links which form a 3D chain that feels almost square, and looks as though the wire has been plaited. Anchor: The anchor chain copies the style of the chain that holds large anchors on ships, an oval link with a dividing bar through the middle. The interlinking sections may be of a curb or trace style.
Also anchor rode. The anchor line, rope, or cable connecting the anchor chain to the vessel. rogue wave Any unusually large wave for a given sea state; formally, a wave whose height is more than twice the significant wave height of that sea state (i.e. the mean of the largest third of waves in a wave record). roll 1.
This photo shows the anchor chain running through a ship's hawsepipe. Hawsepiper is an informal maritime industry term used to refer to a merchant ship's officer who began his or her career as an unlicensed merchant seaman and did not attend a traditional maritime college or academy to earn an officer's license. The term is almost exclusively ...
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Bar-link chain (or block chain), a mechanical drive chain; Bicycle chain, a roller chain that transfers power from the pedals to the drive-wheel of a bicycle; Buffers and chain coupler, a railway device; Catenary (or chain), the shape of a hanging flexible cable when supported at its ends and acted upon by a uniform gravitational force