Module 2 - Ropework
Rope Types and Materials
Modern yacht ropes are made from synthetic materials. The most common are: Polyester (Terylene/Dacron) — strong, low stretch, UV-resistant, used for sheets and halyards. Nylon (Polyamide) — very strong with high elasticity, ideal for anchor warps and mooring lines because it absorbs shock. Polypropylene — inexpensive, lightweight, floats, but weakened by UV and relatively low strength; used for safety lines.
Dyneema and Spectra are ultra-high-strength, low-stretch fibres used in high-performance halyards and sheets. They are light and extremely strong but more expensive and can be slippery if not handled correctly.
Key points
- Polyester — low stretch, UV-resistant (sheets, halyards)
- Nylon — high elasticity, shock-absorbing (anchor warps, mooring lines)
- Polypropylene — floats, cheap, UV-sensitive (safety lines)
- Dyneema/Spectra — ultra-strong, low stretch (performance halyards)
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