Which Rope Should I Use?
                  Excerpted from Ocean 
                  Spirit Magazine 
                
                   
                    The guys at BoatUS know a lot 
                        about rope—as skippers of their own boats and as 
                        buyers specifying its construction. They know how it's 
                        made, the best ways to use it, and which manufacturers 
                        can be trusted to produce consistently high-quality rope. 
                        They share their expertise with us...  | 
                  
                
                Lines for All Boats
                 Standard and Premium Nylon:
                  For most docking and anchor lines, standard nylon is a fine 
                  choice. It has great strength, “gives” under load 
                  to absorb energy, and is relatively inexpensive. It's also easy 
                  to handle and resists the harmful effects of sunlight better 
                  than other synthetics.
                 Premium nylon is even stronger than standard 
                  nylon, experiences far less breakage when subjected to repeat 
                  stretching, and is preshrunk and coated with Seagard™ 
                  Marine finish for significantly improved abrasion resistance.
                 Treated rope lasts longer because there is less 
                  friction between the fibers. We recommend premium nylon for 
                  heavier weather docking and anchoring or when you want extra 
                  security.
                 Our BoatU.S. specifications for premium nylon 
                  is comparable to all similar line, and resists repeated near-destructive 
                  surges better than all we tested. 
                At 75% breaking strength (we suggest normal loading 
                  should be no more than 25% breaking strength), our rope averaged 
                  40 cycles before it finally parted —- eight times longer 
                  than other ropes.
                 This means your lines will stay on duty even 
                  when stressed well beyond the service intended, resisting big 
                  wakes, strong winds, and other challenges.
                 Of course, chafing gear is still recommended. 
                  But if it slips or wears through, you will want the best abrasion 
                  resistance possible.
                 Polypropylene
                  Because polypropylene rope floats, it’s handy to have 
                  around for multiple purposes such as tow lines and dinghy applications. 
                  Made of synthetic fibers, polypropylene is almost as strong 
                  as nylon but is considerably less resistant to the sun’s 
                  UV rays.
                 Sailing Lines
                 Your boat’s running rigging is not the 
                  place to economize. If you purchase quality rope designed for 
                  a specific use, you’ll do more than improve your boat’s 
                  performance: quality rope, properly cared for, can be used repeatedly 
                  for progressively less demanding jobs, giving it a long and 
                  useful life.
                 With today’s new high-tech synthetic fibers 
                  and advanced rope construction, you can buy rope that’s 
                  10 times stronger than steel with extremely low stretch. Many 
                  racers and cruisers have switched from wire to all-rope halyards; 
                  others have also opted for high-strength, low-stretch, lightweight 
                  ropes for their running rigging.
                 All-rope halyards have several advantages over 
                  wire. Hand-over-hand hoisting is much faster than cranking an 
                  all-wire winch; it’s safer, too. Wire is hard on your 
                  hands and gear. Rope is easier to splice, it won’t scrape 
                  paint or anodizing from your mast, and you don’t have 
                  to decide whether or not to rely on a worrisome rope-to-wire 
                  splice. The primary disadvantages are that rope is thicker, 
                  so it has more windage aloft (but half the weight!), and even 
                  the ultra-lowstretch fibers elongate more than wire. Quality 
                  rope costs more than wire but is easier to install, lasts longer, 
                  and can be recycled in a less demanding capacity.
                 Colour Coding
                 To avoid hassles out on the water, colour code 
                  your lines so that they are easily identifiable to your crew.
               
               
                 For powerboaters, color coding can help distinguish the different 
                  lengths of dockline.
                 Polyester/Dacron®
                  Used for sheets and halyards. Long-wearing polyester is easy 
                  on the hands and gives a good grip on winch drums, even when 
                  wet.
                 Portland Yacht Braid
                  Easy to splice. It features a braided outer jacket as well as 
                  a braided inner core for extra strength and abrasion resistance. 
                  Portland is extremely flexible and runs more smoothly through 
                  fairleads than spun braid.
                 Spectrum™
                  A “fuzzy” textured Type 77 Dacron® sleeve over 
                  a braided polyester core. Tends to be slightly larger in diameter 
                  when not under load. Be sure to select a diameter that will 
                  fit through blocks, eyes, and leads when the load is light.
                 Ultra Ultra Low Stretch™
                  The lowest stretch polyester double braid on the market, it’s 
                  stronger, lighter, and more economical than wire. UULS features 
                  a low helix braid of 100% polyester with a 24-carrier cover 
                  that controls the core element. Nubby surface texture provides 
                  good grip when wet or dry, and allows an easily performed splice.
                 High Tech
                  Used for halyards, sheets, guys, and control lines where you 
                  need higher strength and lower stretch than all-polyester lines.
                 Vizzion™
                  Its core is a blend of Hoechst Celanese Vectran liquid crystal 
                  polymer and Olefin. The sleeve is a tri-strand, abrasion-resistant 
                  polyester filament. This combination results in a stronger line 
                  that provides real holding power on winches and in stoppers.
                 Crystalyne
                  A 100% Vectran double-braided core with a Maxijacket™ 
                  coating for ultimate performance. Braided jacket is 100% SeaGuard™ 
                  polyester for abrasion resistance. Very high strength, low stretch 
                  will not creep like other high-tech fiber ropes.
                 Aracom™
                  Is the highest performance all-Kevlar® core double braid 
                  on the market. It’s made for high-performance sail control 
                  under big loads where strength is critical.
                 Maxibraid Plus™
                  Is a unique double-braided rope that is pound-for-pound 10 times 
                  stronger than steel, and has extremely low stretch for better 
                  control. Its core is 100% Spectra fiber, impregnated with a 
                  molecular-adhesion coating to enhance durability and to increase 
                  bending fatigue life. The sleeve is smooth filament polyester 
                  braid.
                 Vectrus Single Braid
                  Is 100% Vectran single braid with a coating to enhance abrasion 
                  and UV resistance.
                 Yale Light™
                  Is ideal for spinnaker sheets. Spectra core with polypropylene 
                  jacket. It has an above-average power-to-weight ratio, and it 
                  won’t gain weight because it won’t absorb water.
                 It's used by Olympic and championship sailors worldwide because 
                  it gives the highest strength and lowest stretch of any doubled-braided 
                  floating rope.
               
              
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 Inspect lines for signs of pulls, loose areas 
                    or serious abrasions before using them.
                 
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 Chafing tape or chafe guards, as well as 
                    swivels and shackles, help minimize abrasion caused by cleats, 
                    chocks, and blocks. 
                 
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The lower limit of the indicated working load 
                    range should be used where life or limb is involved or for 
                    exceptional service conditions such as shock loads. Never 
                    exceed the listed working load range. If your rope is old 
                    or worn, make additional allowances to assure safety.
                 
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 Rope that is strong enough under a steady 
                    strain can be broken with a sudden jerk, so never stand in 
                    line with rope under tension. If the rope fails, it could 
                    recoil with considerable force, especially if it's made of 
                    nylon.
                 
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 Any rope will benefit from an occasional 
                    bath in warm fresh water. The water lifts out dirt and makes 
                    the rope more supple. Some skippers squirt a little fabric 
                    softener in the water and then rinse the rope a second time. 
                    This also helps to eliminate squeaking.
                 
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 All rope is prone to UV deterioration when 
                    exposed to the sun. Whenever possible, store rope out of the 
                    sun and away from heat, chemicals, and moisture.
                 
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 Store your rope on a reel or coiled to prevent 
                    knots, kinks, and tangles that reduce strength.
                 
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 Avoid kinks by padding sharp angles for safety. 
                    Sharp angles greatly affect the strength of rope.
                 
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 Reverse rope ends and alternate ropes to 
                    prevent isolated wear and extend rope