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Parrel beads

Element of sailing rigging

Parrel beads

Element of sailing rigging

Two examples of parrel beads in use on a gaff sail. The black beads are on the parrel that attaches the gaff to the mast: it is attached to the jaws of the gaff. The brown beads are on individual parrels that connect the luff of the sail to the mast.

Parrel beads (also spelled parral or parrell) are an element of sailing rigging. They act as roller bearings on a parrel, which is a rope or wire strop that typically fastens one spar to another along which it must have some freedom of movement. An example of this is at the jaws of a gaff on a gaff rigged or gunter rigged craft. This allows the gaff to slide up and down the mast as sail is hoisted or lowered, and allows some rotation around the mast as the sail is sheeted in and out to allow for different wind directions. Another example is on the tack of a spinnaker rigged over a furled jib.

Construction

Mary Rose}}. Note the downhaul attached to one of the ribs.

A set of parrel beads is formed from small balls, size depending on the application, threaded on a piece of small line and secured with a stopper knot at each end.

Use

One end of the line is usually permanently bent to the movable item. When in use the movable item is positioned where it is required, and the free end of the parrel bead line is passed around the static item and secured back to the movable item. Their function is to secure the movable item in place, but to allow it to move along and around the device.

References

References

  1. "Definitions from Dictionary.com".
  2. Leather, John. (2001). "The Gaff Rig Handbook: History, Design, Techniques, Developments". WoodenBoat Publications.
  3. "Cruising with an Asymmetrical Spinnaker".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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