Marlow_Retail.pdf - 2 Pages

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Marlow_Retail.pdf

Catalog excerpts

SIZES AND STRENGTHS Keel Boats Sheets and Halyards Size Selector D2 Racing 75 (Dyneema®) Charts show usual sail area in square feet for a given boat length in metres. If your boat is rigged Diameter (mm) 10 12 14 16 Average Break Load (kg) 3950 8 5360 6690 9274 5.92 9.29 11.66 14.69 18.52 3.90 09 with larger sails, use the rope size indicated for the sail area. 11592 14919 Weight (kg/100m) THE ROPE SELECTION GUIDE 18 Overall Yacht Length (m) 6-8 9 10 11 12 14 16 18 Approx. Sail Area sq.ft. D2 Competition 75 (Dyneema®) 10 12 MAIN 90 144 171 198 252 405 540 720 Average Break Load (kg) 2025 3950 5360 GENOA/JIB 100 180 270 360 450 630 765 900 Weight (kg/100m) 7.63 9.71 SPINNAKER 405 495 585 765 990 1260 1620 1980 Diameter (mm) 8 4.83 Excel Fusion 75 (Dyneema®) Diameter (mm) 6 SHEET SIZE diameter (mm) 7 8 10 Average Break Load (kg) 590 1085 1450 2472 Weight (kg/100m) 2.2 3.0 4.4 1.7 MAIN Diameter (mm) 6 10 12 14 16 18 Average Break Load (kg) 901 1740 2850 4450 5460 7420 10190 11340 Weight (kg/100m) 4.5 7.3 10 14.5 19 23.5 12 14 16 18 20 3 20 28.5 8 10 10 12 12 14 16 10 12 12 14 16 18 8 8 8 10 10 12 14 16 8 8 10 10 12 14 16 18 Suggested SHEET ropes. MARLOWBRAID, Mattbraid, D2 Racing HALYARD SIZE diameter (mm) Mattbraid (Polyester) Diameter (mm) 10 10 SPINNAKER/GUY 8 10 8 SPINNAKER Marlowbraid (Polyester) 8 GENOA/JIB MAIN 10 10 12 12 14 14 18 20 10 10 12 12 14 14 18 20 8 8 10 10 12 12 14 16 Average Break Load (kg) 1395 3000 3510 5450 6200 7900 10110 GENOA/JIB Weight (kg/100m) 7.4 10.3 14.6 18.6 24.4 29.8 SPINNAKER 4.4 Doublebraid (Polyester) Diameter Suggested HALYARD ropes. Marlowbraid, D12 Racing 6mm 8mm 10mm 12mm 14mm 16mm 18mm Average Break Load (kg) 1230 1900 2300 3350 5100 Weight (kg / 100m) 5.20 8.20 11.60 15.30 21.60 26.00 2.90 6200 Remember for D2 Racing, V2Racing Sheets or Halyards you can go down a size. 7500 MOORING ROPES diameter (mm) Displacement (approx) tonnes Diameter (mm) 6 8 Average Break Load (kg) 700 850 Weight (kg/100m) 2.3 3.1 4 5 5 6.5 8 11 12 20 12 12 14 14 16 18 24 14 16 18 20 20 24 28 Suggested MOORING ropes. 3-Strand Standard Polyester, Docklines. ANCHORS WARPS, PAINTER LINES Average Break Load (kg) 562 877 Weight (kg/100m) 1.59 1.02 NYLON 2.5 12 14 16 16 18 20 20 24 POLYESTER 14 16 18 18 20 24 24 24 NYLON (KEDGE) Excel D12 (Dyneema®) Diameter (mm) 4 8-10 POLYPROPYLENE (Nelson) 10-12 Excel Control Diameter (mm) 2 POLYESTER Excel Marstron (Polypropylene) 8 8 10 10 10 12 12 12 3 4 5 6 Average Break Load (kg) 569 995 2056 2395 3230 Suggested ropes. Multiplait nylon. Weight (kg/100m) 0.53 0.98 1.28 1.77 ANCHOR AND CHAINS 0.37 Excel Racing (Dyneema®) Diameter (mm) 1.5 BRUCE 2 3 4 5 Average Break Load (kg) 172 211 463 1152 1410 Weight (kg/100m) 0.34 0.6 1 1.9 2.5 0.15 2 3 4 5 6 8 Average Break Load (kg) 97 199 377 687 906 1420 Weight (kg/100m) 0.65 0.9 2 3 4.5 0.28 4 5 6 15 20 20 30 14 19 25 25 34 8 8 10 10 10 12 12 12 Sizes are diameter (mm) Average Break Load (kg) 428 617 891 Weight (kg/100m) 2.1 2.9 Colour Code 5 or 6 8 or 10 White 5 or 6 8 or 10 Blue SPINNAKER 5.5 SHEETS 8-PlaitMatt Mattbraid 8-Plait Marston JIB 1413 HALYARDS Excel Racing Excel Pro Pre-Stretched MAIN 8 1.3 10 14 Dinghies 8 Plait Pre-Stretched (Polyester) Diameter (mm) 10 14 Bruce, Danforth and CQR anchor on kg. Other sizes are diameter in mm Excel Pro (Polyester) Diameter (mm) 7.5 8 CHAIN 2025 5 DANFORTH & CQR 6 5 or 6 6 Red 3 Strand Pre-Stretched (Polyester) 4 5 6 8 10 Diameter (mm) 3 583 1034 1694 2178 2640 3344 Weight (kg/100m) 0.98 1.61 2.07 3.06 4.81 8.23 10.66 12 14 16 6250 12.74 CONTROL LINES 4mm or 5mm 8-Plait Pre-Stretched or Excel Pro. Where very low stretch is required use Excel D12 or Excel Racing. 12 Average Break Load (kg) 319 7600 16.64 Remember, when using Excel Racing for control lines and halyards you can go down a size, when using Excel D12 you can go down two sizes Docklines Diameter (mm) Average Break Load (kg) 4150 Weight (kg/100m) 7.91 3 Strand Standard (Polyester) Diameter (mm) 4 6 8 Average Break Load (kg) 529 941 1465 2570 3170 3930 4766 6600 Weight (kg/100m) 1.21 2.73 4.8 10 12 14 16 18 20 24 9230 11210 14640 18840 28 7.85 10.9 14.9 19.4 24.6 30.3 46 14 28 32 62.8 32 82 Multiplait (Nylon) Diameter (mm) 8 Average Break Load (kg) 1900 2770 3800 4670 6640 7270 9890 14370 18550 23930 Weight (kg/100m) 4.2 10 6.5 12 9.4 16 18 12.8 16.6 21 20 26 24 37.3 51 66.4 Remember, this selection guide holds only part of Marlow’s extensive range - ask your local Marlow dealer for information on our other products, or visit www.marlowropes.com Rigging Guide % LOAD 100 - Stretch factors 90 80 70 - Rope Care At Marlow, we know what our ropes will do. How well they can be expected to perform. How long they are likely to last and under what conditions. That’s our business. The fact remains that the best ropes in the world deserve to be well looked after in order to preserve their reliability, durability and performance. Coiling and Uncoiling Not always as simple as it sounds. Pulling wrongly from a coil or reel can cause kinks where one strand turns over into a tight little loop and stands out like a vein much reducing the strength of the rope. The answer is to coax out the kink before any damage is done. Nipping A sharp bend is something to avoid. It means that only about half of the rope’s fibres are taking the load - the remaining fibres being rendered ineffective by compression. This in turn puts undue strain on the remaining fibres. Wear There’s no problem in storing synthetic ropes in a wet state. The risk of deterioration is minimal. The real risk is if they remain in the same position for long periods of use. If signs of wear are there to see, the rope can be reversed one end to the other in order to spread the wear. Alternatively, use slightly longer ropes than needed in the first place and periodically move the bearing position a few inches. The furry look of a well used synthetic rope may indicate a slight strength loss however the hairy surface helps to protect the rope against further abrasion. If the rope shows excessive wear i.e. a plaited cover worn right through, the rope will need to be replaced. Abrasion Something to watch for with every rope. Checking the blocks, cleats and fairleads for burrs and imperfections allowing the rope to pass freely minimise the risk, although many problems are often due to using the wrong sized rope for the fitting. Only a regular inspection will keep you out of trouble. Information on recommended sheave diameters are available from our technical department. Heat Damage Friction can cause strands to melt both externally and internally. But as the melting point of most rope fibre are between 130° - 260°C the risk of real damage under normal sailing conditions is slight. If you think a rope has been overloaded, open the strands to check for heat damage (fusing of strands). Splicing A correctly spliced rope has between 90 - 95% of the strength of the unspliced rope. Regular inspection of the splice makes sense. For example, a plaited rope splice where new fibres sometimes appear at the neck. If this can be seen the splice is slipping. 60 50 40 30 20 10 0 - | 5 | | | | | 10 15 20 25 30 % EXTENSION Dyneema® SK75 Vectran® Polypropelyne Marlowbraid Doublebraid Polyester 8-Strand Nylon The three-way stretch There are three terms for the ways in which halyards and sheets stretch under tension: (1) elastic stretch - in which recovery is total and immediate: (2) recoverable stretch - difficult to allow for, because recovery towards the original length after tension is gradual: (3) nonrecoverable stretch (creep) from which even the best rope never quite recovers its length due to changes in its geometry. This graph shows figures for the total stretch of a selection of Marlow ropes after working six times to 50% of break. Note the low stretch of the plaited ropes and the extent to which stretch decreases after working. ‘Marlow’ and the ‘Black Marker’ are registered trade marks of MARLOW ROPES LTD. Marlow Ropes Ltd endeavour to ensure that all products are manufactured to the highest standards, these guidelines are for information only and do not create any warranties, expressedor implied, of merchantability or fitness for a particular purpose. Marlow Ropes Ltd shall not be liable for any loss or damage whatsoever relating from the use of these guidlelines. Marlow Ropes Ltd has a policy of continual improvement which may result in specification and colour changes without prior notice. End of Season Salt crystals will affect the life and efficiency of ropes so, at the end of each season, soak them in fresh warm water. Dyneema® is a registered trademark of royal DSM N.V Marlow Ropes Ltd Ropemaker Park, Diplocks Way, Hailsham, East Sussex BN27 3GU, United Kingdom T : +44 (0) 1323 444444 F : +44 (0) 1323 444455 yachting@marlowropes.com www.marlowropes.com

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