Sheet (sailing)

One of the sheets ( nautical derived from lap with the meaning " corner, corner " of a sail ) is sailing a leash to operate a sail. Pods are an integral part of Guts date of sailing ships and sailboats.

In Schratsegeln ( sails that are attached fore and aft ) are pods needed to align the sail and for their trim. You control especially the angle of the sail to the wind.

In square sails ( square sails, which are held up by a wooden cross and drove across the front of the mast ) each hold two pods attached to the sides of the top of the frame sail down. They are used with square sails under which another context is, for hoisting and lowering the sail as a counterpart to the Geitauen; the angle of attack of the sail is only changed here by bream. In Under sail ( the most under square sails on a mast, eg Fock ) or the forecourse the pods also influence the orientation of the sail.

Designations

Because on a sailing ship or boat usually are several pods, they always bear the name of the sail, to which it is attached; the mainsail it is, for example, mainsheet, jib sheet in the jib. If two pods attached to a sail, they are more accurately referred to as Backbordschot or Steuerbordschot after the ship's side, eg Fockbackbordschot. When spinnaker, which is driven with two lateral lines, the line to leeward spinnaker sheet, the line on the windward side is called afterguys. The corner of the sail, where the sheet is attached, is called the clew.

Dinghies and yachts

Operation

To drag sail depending on the course to the wind more to ship mid or to trim them flat, has a sheet "is obsolete " (dragged ) are; to sail to open on a Raumschotskurs further or to reduce their stress, it is " eased " ( line yielded ).

Depending on the size of the sail, the wind can exert on the sheet large forces that are impossible to handle with bare hands. Is the sheet attached to a sail tree, as usually when the mainsail yachts and dinghies, it is therefore over a pulley, a " tackle ", operated. The mainsail tackle was injured on dinghies with its lower end on the cockpit floor and is operated by the helmsman. On regatta boats and yachts in the lower Taljeblock is slidably mounted on a traveler track. The sheet of a headsail is guided on both sides at the past mast, through roles and fairleads in the cockpit of the ship where the foredeck is responsible for them. On larger boats winches are used, which can transfer a large pulling force by their mechanical translation.

Since the position of the pods must be changed often just on sport boats depending on the course and wind speed, allow comb and cleats fast operation. The sheet is only locked them in the short term and does not have to be time consuming cleat for or detached from it. On smaller dinghies serve this purpose " Knarrpoller " said Kleinwinschen, which can only be rotated in one direction and keep the sheet by friction in their current position.

Trim options

Headsail

To adjust the level of the headsail Vorschoten on yachts are almost always performed on Fockschotleitschienen a movable roller, which are located on both sides of the ship deck. The point at which the sheet is deflected by a roller is referred to as tow point. His shift is not only adapting to headsail different size, but also an optimization of the sail trims. Is the tow point on the front, the leech of the sail is more stretched ( strained ), the deepest curvature of the sail moves back and down, the twist of the sail decreases, and the sail twist decreases. If the sheeting point further back, the foot of the sail is more stretched ( strained ) and deepest curvature of the sail moves forward and up, the twist of the sail increases, and the twist increases. The Schotspannung controls the angle of the sail.

Mainsail

A similar purpose is the so-called Traveller. It is a Schotumlenkung on a carriage which is movably mounted on a slide rail. With it, the hole point can be shifted to windward or Lee. With the Traveller you control the angle of attack of the sail. The Schotspannung serves to check the torsion ( twist) of the sail: the stronger the Schotspannung, the lower the distortion.

Material and manufacturing

At the material of pods several requirements:

Usually pods are now made ​​of synthetic fibers, usually polyester ( cheap, but has quite a lot of stretching ) or Dyneema, which is indeed more expensive, but also solid and reck poorer. Only on traditional sailing lines are used from natural fiber today.

For pods is nowadays used on small boats only braided rope, as laid rope by its construction has too much stretching.