Parrel beads (also spelled parral [1] 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. [2] Another example is on the tack of a spinnaker rigged over a furled jib. [3]
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. [2]
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.
A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture.
A sailing vessel's rig is its arrangement of masts, sails and rigging. Examples include a schooner rig, cutter rig, junk rig, etc. A rig may be broadly categorized as "fore-and-aft", "square", or a combination of both. Within the fore-and-aft category there is a variety of triangular and quadrilateral sail shapes. Spars or battens may be used to help shape a given kind of sail. Each rig may be described with a sail plan—formally, a drawing of a vessel, viewed from the side.
The Bermuda sloop is a historical type of fore-and-aft rigged single-masted sailing vessel developed on the islands of Bermuda in the 17th century. Such vessels originally had gaff rigs with quadrilateral sails, but evolved to use the Bermuda rig with triangular sails. Although the Bermuda sloop is often described as a development of the narrower-beamed Jamaica sloop, which dates from the 1670s, the high, raked masts and triangular sails of the Bermuda rig are rooted in a tradition of Bermudian boat design dating from the earliest decades of the 17th century. It is distinguished from other vessels with the triangular Bermuda rig, which may have multiple masts or may not have evolved in hull form from the traditional designs.
A tall ship is a large, traditionally-rigged sailing vessel. Popular modern tall ship rigs include topsail schooners, brigantines, brigs and barques. "Tall ship" can also be defined more specifically by an organization, such as for a race or festival.
A topsail ("tops'l") is a sail set above another sail; on square-rigged vessels further sails may be set above topsails.
A spinnaker is a sail designed specifically for sailing off the wind on courses between a reach to downwind. Spinnakers are constructed of lightweight fabric, usually nylon, and are often brightly colored. They may be designed to perform best as either a reaching or a running spinnaker, by the shaping of the panels and seams. They are attached at only three points and said to be flown.
A mainsail is a sail rigged on the main mast of a sailing vessel.
Gaff rig is a sailing rig in which the sail is four-cornered, fore-and-aft rigged, controlled at its peak and, usually, its entire head by a spar (pole) called the gaff. Because of the size and shape of the sail, a gaff rig will have running backstays rather than permanent backstays.
Running rigging is the rigging of a sailing vessel that is used for raising, lowering, shaping and controlling the sails on a sailing vessel—as opposed to the standing rigging, which supports the mast and bowsprit. Running rigging varies between vessels that are rigged fore and aft and those that are square-rigged.
A lugger is a sailing vessel defined by its rig, using the lug sail on all of its one or more masts. Luggers were widely used as working craft, particularly off the coasts of France, England, Ireland and Scotland. Luggers varied extensively in size and design. Many were undecked, open boats, some of which operated from beach landings. Others were fully decked craft. Some larger examples might carry lug topsails.
A yard is a spar on a mast from which sails are set. It may be constructed of timber or steel or from more modern materials such as aluminium or carbon fibre. Although some types of fore and aft rigs have yards, the term is usually used to describe the horizontal spars used on square rigged sails. In addition, for some decades after square sails were generally dispensed with, some yards were retained for deploying wireless (radio) aerials and signal flags.
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water. Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin nauticus, from Greek nautikos, from nautēs: "sailor", from naus: "ship".
A Bermuda rig, Bermudian rig, or Marconi rig is a configuration of mast and rigging for a type of sailboat and is the typical configuration for most modern sailboats. This configuration was developed in Bermuda in the 1600s; the term Marconi, a reference to the inventor of the radio, Guglielmo Marconi, became associated with this configuration in the early 1900s because the wires that stabilize the mast of a Bermuda rig reminded observers of the wires on early radio masts.
Sail components include the features that define a sail's shape and function, plus its constituent parts from which it is manufactured. A sail may be classified in a variety of ways, including by its orientation to the vessel and its shape,. Sails are typically constructed out of flexible material that is shaped by various means, while in use, to offer an appropriate airfoil, according to the strength and apparent direction of the wind. A variety of features and fittings allow the sail to be attached to lines and spars.
In sailing, a sheet is a line used to control the movable corner(s) (clews) of a sail.
A fractional rig on a sailing vessel consists of a foresail, such as a jib or genoa sail, that does not reach all the way to the top of the mast.
The junk rig, also known as the Chinese lugsail, Chinese balanced lug sail, or sampan rig, is a type of sail rig in which rigid members, called battens, span the full width of the sail and extend the sail forward of the mast.
A sail is a tensile structure, which is made from fabric or other membrane materials, that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments, usually in a three- or four-sided shape.
The following outline is provided as an overview of and topical guide to sailing:
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water. Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin nauticus, from Greek nautikos, from nautēs: "sailor", from naus: "ship".