Abstract: A chafe jacket is used with a line extending around a structure comprising a tube structure defining an inner surface and a jacket axis. The tube structure comprises fibers each defining a fiber axis. The fiber axes defined by portions of the fibers defining the interior surface of the tube structure extend at an interior fiber angle of less than approximately 50 degrees relative to the jacket axis. The chafe jacket extends around at least a portion of the line adjacent to the structure to reduce wear on the line.

Abstract: A dragline excavator system has a support assembly, a hoist coupler assembly suspended from the support assembly, a bucket assembly suspended from the hoist coupler assembly, a sheave assembly supported by the hoist coupler assembly, a drag coupler assembly, and at least one dump rope operatively connected to the drag coupler assembly and the bucket assembly. The at least one dump rope extends through the sheave assembly. The at least one dump rope is formed of at least one fiber made from at least one of high modulus polyethylene (HMPE), poly-p-phenylenebenzobisoxazole (PBO), liquid crystal polymer (LCP), aromatic polyamide (Aramid), polyester, nylon, polyolefin, polypropylene (PP), carbon, and glass.