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Specify the function, load and rope arrangement before choosing hardware. Similar-looking components may have different ratings, line requirements and installation limits.
Rigging brands & tutorials →MarineBrands editorial definitions · Reviewed 5 October 2026 · Examples explain context, not operating procedures.
12 of 12 terms
Also find under: pulley
A fitting containing one or more sheaves that guide a line.
Check line size, load rating and mounting orientation; outer size is not a load specification.
Also find under: break load
The load associated with failure in a specified test or rating convention.
It is not a safe operating target; the test basis and manufacturer’s working guidance matter.
Also find under: mechanical advantage
An arrangement of lines and blocks that provides mechanical advantage.
A nominal purchase ratio does not account for all friction or determine every component’s load.
Also find under: clutch
A device designed to hold a line under load and release it in a controlled arrangement.
Confirm both the rope construction and diameter range with the clutch maker.
The adjustable lines and associated arrangements used to control sails and spars.
Name each line’s function when requesting a replacement rather than ordering by colour alone.
The grooved rotating wheel within a block or similar line-handling fitting.
A replacement sheave needs the correct dimensions, bearing arrangement and line compatibility.
A rigging member providing lateral support to a mast.
Wire size alone does not identify the complete shroud assembly or terminal compatibility.
Also find under: eye splice
A rope joint or termination made by interweaving or reconstructing its strands or braid.
A suitable splice depends on rope construction and the maker’s procedure, not only its diameter.
The stays and shrouds that support a mast in its working position.
A standing-rigging inspection is a different scope from replacing worn sail-control ropes.
A rigging member supporting a mast, commonly in a fore-and-aft direction.
Specify forestay or backstay and the actual end fittings when discussing replacement parts.
A rotating-drum device that assists hauling or controlling a loaded line.
A winch’s model designation is not a universal statement of permitted line load.
Also find under: WLL maximum working load MWL
The manufacturer’s permitted working load under its stated conditions and application.
Do not use a breaking-load figure as the normal working allowance for a component.
Original concise explanations for equipment research. Use these specialist resources for the wider technical context and the relevant current documentation for a particular product or activity.
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