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Ropes - Running rigging

Halyards

Which type of rigging and which materials are especially suitable for halyards? Very simple: Dyneema high-performance fibers. The main goal here is to decrease the stretch on the running rigging, which can be accomplished by using products from our selection of high-performance rigging on board of your yacht.

To Dyneema Guide »
A few years ago it was still common practice that almost every yacht was equipped with a lot of steel fittings and wire rope on every nook and corner. Modern rigging innovations can replace all types of hardware on-board, such as running rigging and traditional shackles. Why is that? The reason for this is simple: Rope is lighter than stainless steel or wire and it also has a higher breaking load in some cases. This is especially true for racing and regatta vessels, which become noticeably faster due to the significant amount of weight saved by using rope-based rigging on-board. A basic maritime rule is that each additional kilogram of rigging must be compensated by about seven kilograms of extra ballast, in order to keep the vessel sturdy.

The goal: Improved performance with less draw on running rigging
In addition to properly trimmed rigging, a massive performance-booster for your yacht and its running rigging is determined by the: angle, twist and tension the sails. The lower stretch that sheets, halyards and control lines have, the better and more constant the tension of halyards can be maintained, making it less necessary to reposition your halyards, even if the wind speed increases. The more the running rigging stretches, the higher the probability that important tension on the sail can be lost in increasing winds and that your sail becomes untrimmed and bulbous during gusts of wind.

In sailing terminology, "bulbous" is defined as a sail with an extremely curved profile, which produces very little propulsion and lots of resistance. This should be especially avoided in windy conditions, where the sail should be trimmed flat, because it provides less resistance.

The solution: High-performance Dyneema fibers
In the 80’s, the firm DSM invented Dyneema synthetic fibers, which provide extremely strong tensile strength and a very low degree of stretch. This was done by using "Ultra-High Molecular Weight Polyethylene (UHMWPE)", which is basically material made out of extremely high molar mass and stretched molecular chains. The special secret of Dyneema is its extremely long molecular chains, which carry load better on their polymer structure. Dyneema rigging can be up to 5 times the tensile strength of regular polyester rigging and it’s just as strong as steel when its at the same thickness. Dyneema has the lowest elongation at break in comparison to all other synthetic fibers. Moreover, Dyneema rigging is fairly easy to splice and rig. Another advantage of Dyneema rigging on board of a yacht, is their great degree of buoyancy, seeing as they are lighter than water. The only significant disadvantage of Dyneema rigging is their permanent elongation under high stress, which is also called "creeping".

Dyneema yes! But which one?
Since the invention of Dyneema high-performance rigging, the Dutch company DSM has optimized and changed their fibers several times. The first fiber type was designated as SK 60. The next types were then called: SK 75, 76, 78, 90, 95 and 99.

SVB offers Dyneema rigging from the Gleistein brand, based in Bremen, Germany. For use on yachts, braided rigging is almost exclusively used, usually with a core-sheath braid, wherein the core takes the burden of the tensile forces and the outer sheath protects the core. We offer both rigging made out of pure, coated Dyneema fiber, such as Gleistein’s DYNA ONE and rigging with a Dyneema core and polyester sheath. The Dyneema core reduces stretching on sheets and the sheathing around the Dyneema core ensures that the rigging is held secure on winches, cleats and stoppers. This way, the sheath doesn’t have to bear the load.

The specific type of design and braiding is of the most importance in assuring a quality core. Normally, a twelve- or sixteen-fold braid is used for the core. In the case of twelve-fold braiding, individual braids tend to move in the direction of the load, whereas in the case of sixteen-fold braiding - the individual braids entwine less and are contained to a higher degree, considering the given length and thickness of the core fiber material, which reduces the stretching of sheets.

I sail most weekends...
Finding out which type of Dyneema rigging suits you and your yacht the best is decided by your sailing habits. For weekend and recreational sailors, the classic "CUP" or "HARKEN" or rigging solutions without Dyneema fiber can be used, since this type of sailing doesn’t require expensive or high-performance rigging.

I sail often, sometimes for several days or weeks at a time...
If you’re a cruising or offshore sailor and you sail for several days or even weeks at a time in high winds and rough seas, the demands on your running rigging increase. Your halyards and sheets must be able to bear extreme loads, due to the fact that your washers, stoppers and winches may cause abrasion and the long-term expansion of your running rigging may also cause increased wear. Here we advise you to use halyards and sheets with pure Dyneema core with 12-braids, such as CRUISE XP rigging, developed by Gleistein. This type of rigging guarantees sufficient tension on your halyards over a longer period of time and they are available in different colors and levels of thicknesses, which also offer the end-user with an optimal price to performance ratio as well.

I'm a high-performance or racing yachtsman...
Regatta sailing is a high-performance sport, in which sailors require great stamina, experience and performance. On top of teamwork, the best materials and rigging are also essential. As a regatta sailor, you naturally need running rigging with minimal stretch and the lowest possible top weight. A low degree of stretching is ensured by Dyneema’s fiber core. The outer sheath should also provide the best possible grip in the fittings as well. In order to save even more weight, we offer our regatta sailors with the TAPERTWIN by Gleistein. This type of rigging has been specially produced for regatta and racing yachts with its sheathed, 12x core design and thus provides an ideal rigging solution when it comes to saving even more weight on-board. It is perfect for use with halyards and sheets – as the mainsail, jib, gennaker and spinnaker.

Another top seller for regatta and racing yachts is our top class rigging solution, DYNA ONE, by Gleistein. This type of rigging is constructed out of pure Dyneema 12x braid, with a special coating and without a sheath. DYNA ONE provides the strength and breaking load of a wire rope at one-eighth the size. Especially when used as a control, trim or steering line, it comes as a great advantage aboard racing and regatta yachts. By not having a sheath, not only is a lot of unnecessary weight spared, but it also runs smoother through blocks and diversions as well.

Dyneema rope splicing
Dyneema rigging should be spliced, not knotted, because knotting Dyneema fiber decreases its breaking load by about 50%, therefore requiring larger dimensions. A properly executed splice ensures that the cable provides the greatest amount of strength with the lowest amount of breaking load loss. Thus, an extra sheath between the core and outer sheath can by applied by our professional splicers in some places, which need to be thicker (for example, parts lying on winches and stoppers). Generally Dyneema rigging can be spliced fairly easily, whether it’s: a spliced eye, thimble slice or rope connection. Here is a comparison chart of the strength of Dyneema splices compared to knots with ropes 16mm in diameter.
more Information
Rope CRUISE XP - The Allrounder
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VECTRAN - Rope Without Compromise
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CUP - The Classic Rope
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DYNA ONE - First Class
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DYNEEMA MEGA TWIN - Powerful and Universal
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Sheets

Rope CRUISE XP - The Allrounder
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GEMINI X - The Best of Tradition
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GEMINI X SPORT / Mottled
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CUP - The Classic Rope
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STANDARD - Everything Under Control
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TASMANIA - Flexible and Secure
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HARKON - Heavy-duty Rope
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DYNA LITE - High-performance Sheet/Halyard
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Discover
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GLEISTEIN Discover
2.20 EUR In stock from €2.20
DYNEEMA MEGA TWIN - Powerful and Universal
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Universal Line / on a spool
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Pre-spliced ropes

Rope work by SVB: running rigging ropes require to be done by experienced riggers to achieve perfect splices which keep breaking strength of the line at its original level and for a good and low friction circulation in deck hardware such as blocks and cleats. Our riggers work with ropes made of the best fibers. We can advise you on the ropes construction and fibers for each line.  
With modern fibers such as Dynnema and Vectran, sheet and halyard diameters can be greatly reduced compared to polyester lines. That means saving weight and reducing friction on deck hardware (blocks and cleats). Their fantastic breaking load figures are shown by benchmark tests and also by the personal experiences collected from many users. Feel free to call us for advice when you need new running rigging or simply when you need to replace a line and are thinking of upgrading to high modulus fiber. 
 
The table below shows our recommendations for sheets and halyards depending on the sail area
m²  Cruise XP Dyna One Dyneema Discover Dyna Lite Cup Gemini X Tasmania Harkon Standard Wire 7x19
10 5 4 5 6 6 8 6 8 8 8 3
20 6 4 6 8 8 10 8 10 10 10 3
30 8 4 8 10 10 12 10 12 12 12 4
40 10 4 10 12 12 12 12 12 12 14 4
50 12 5 12 12 12 14 12 14 14 16 5
60 12 5 12 12 14 14 14 14 14 16 5
70 14 6 14 14 14 14 16 16 6
80 14 8 14 16 16 14 16 16 7
90 16 8 16 16 16 18 8
100 16 10 16 20 20 10

Mooring, towing and anchor ropes.
These ropes must withstand pulsating loads. There are high demands on the strength and elasticity of the ropes. If the forces are transmitted undamped, the lines can break early or the fittings can burst. The desired elastic force absorption occurs through the selection of raw materials and the corresponding production techniques. Low-stretch polyester with proper cable construction for the manufacture of mooring and anchor lines in particular.
 
Rope diameter for mooring-, spring-, anchor- and towline
Boat length Polyester mooring Bavaria mooring Polyamid mooring GeoSqare mooring Hempex mooring
6 m 10 mm 8 mm 8 mm 8 mm 14 mm
8 m 12 mm 10 mm 10 mm 10 mm 16 mm
10 m 14 mm 12 mm 12 mm 12 mm 20 mm
12 m 16 mm 14 mm 14 mm 14 mm 22 mm
14 m 18 mm 16 mm 16 mm 16 mm 26 mm
16 m 22 mm 18 mm 18 mm 18 mm 28 mm
18 m 24 mm 18 mm 20 mm 18 mm 28 mm
20 m 26 mm 20 mm 22 mm 20 mm 32 mm
22 m 28 mm 20 mm 26 mm 20 mm 32 mm
more Information
RIVIERA-Sheet
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GLEISTEIN RIVIERA-Sheet
16.95 EUR In stock from €16.95
GENOA sheet with rope shackle
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GENOA sheet with rope shackle
89.95 EUR In stock from €89.95
Headsail Sheet System
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Headsail Sheet System
89.95 EUR In stock from €89.95
ADRIA-Sheet
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GLEISTEIN ADRIA-Sheet
16.95 EUR In stock from €16.95
Pre-Spliced Halyard with snap-shackle
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Pre-spliced Sheet for Headsail
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Polypropylene Rope
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Dyneema Rigging

DYNA ONE - First Class
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DYNEEMA MEGA TWIN - Powerful and Universal
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Rope CRUISE XP - The Allrounder
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DYNA LITE - High-performance Sheet/Halyard
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Whipping Twine & Mini Spools

Whipping Twine
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GLEISTEIN Whipping Twine
4.60 EUR In stock from €4.60
Sail Thread
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Sail Thread
9.95 EUR In stock from €9.95
Sail Tell Tales
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Sail Tell Tales
6.95 EUR In stock only €6.95
Braided Cord
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Rope Spools
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Rope Spools
6.95 EUR In stock only €6.95

Prices you see are based on delivery to this location:
Germany.

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