After years of design cooperation with the US Navy, Phillystran co-engineered the HMPE (high modulus polyethylene) fiber ropes with sequential break technology which reduces the rope’s recoil if overloaded to the point of break (see Cordage Institute standard CI 1502 for effective lengths). This is an important safety feature which is mandated on many US Navy ships. These ropes have been specifically designed for mooring lines, head lines, breast lines or any application requiring ropes that are tough, light, easy to handle and splice – with safety in mind. HMPE ropes consist of four HMPE fiber strands around an independent synthetic core. Each strand is individually jacketed with alternating aramid and polyester yarns for excellent abrasion resistance. The rope is built in accordance with MIL-SPEC A-A-59811A. Weights and dimensions can vary.