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Anchor warps The best rope for warps is nylon which is strong and flexible. Terylene(polyester) is stronger but has less flex. Both ropes sink, so avoid fouling other craft in crowded anchorages and do not absorb much water. Neither breaks down quickly in sunlight. Polypropylene or polythene are not suited to warps as they float and are much weaker than nylon and only slightly stronger than natural fibres. They break down in sunlight. Natural fibres such as manila or hemp are still used in developing nations but absorb much water, are relatively weak and rot. They do give good grip and are often very cheap. All anchors should have chain at least equal to the boat's length. Some skippers prefer an all chain warp for added security in coral waters. Boats less than 8m typically use 6mm galvanized chain. 8-14m craft use 9mm chain and over 14m use 12mm chain. The chain should be shackled to the warp through a steel eye or spliced to the chain using a chain splice. The shackle pin should be securely wired. Either galvanized or stainless steel is suitable for eyes and shackles. In moderate conditions the ratio of warp to water depth should be 4:1. In rough conditions it should be twice this with the extra length giving more stretch to resist the anchor breaking out. This means that small craft under 5m should carry at least 50m of 8mm warp. 5-8m craft 75-100m of 10mm warp. 8-14m should carry 100-125m of 12mm warp and over 16m the same length but 16mm warp.<ref>Safety in Small Craft.Ch 2. Royal NZ Coastguard Federation. Mike Scanlan. Auckland. 1994</ref>


Anchor sections
Intro  Overview   Evolution of the anchor    Small boat anchors    Permanent anchors    Anchoring gear   Anchor warps   Anchoring techniques   In heraldry  See also  References  Bibliography  Further reading  External links  

Anchor warps
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