The eyes in mooring lines are normally 6 to 10 feet long, depending on the size fittings (bollards, bitts or cleats) used. The preferred method for making a sailmak-er's eye splice for 4-strand rope is outlined in Figure 613-2-7.Įye splices consist of three main components: the eye, individual strands, and the standing part of the rope. Eye Splice in Plain-Laid RopeĦ13-2.5.3 EYE SPLICE IN 4-STRAND ARAMID FIBER ROPE. In addition, both natural and synthetic fiber ropes undergo significant reduction in strength when in contact with corroding metal parts such as clamps. Do not splice synthetic fiber ropes with these clamps because these ropes will thin down and slide through the clamps under load. Natural fiber ropes can be eye spliced, using mechanical metal clamps (similar to those used for wire ropes), but the use of such clamps is discouraged as natural fiber ropes lose approximately 70 percent of their strength when spliced by this method. When splicing synthetic rope and whipping the strands and the rope, tape may be used instead of whipping, since whipping tends to slip on the smooth synthetic fibers.Ħ13-2.5.2.1 Natural Fiber Ropes. Tapering is accomplished by cutting approximately 1/3 of the fibers of each strand, tucking each strand over and under the rope strands, cutting approximately half of the remaining fibers of each strand, and completing the final tuck before cutting the remaining loose strands (i.e., approximately 2/3 and 1/3 of the fibers remain in the last two tucks). Complete the splice by adding two complete tucks to taper the splice. Thereafter, the strands may be unlaid for the remaining two tucks. For synthetic fiber ropes, maintain strand turns for the first two tucks. This operation is repeated until three complete tucks are inserted into natural fiber ropes, or until four complete tucks are inserted into synthetic fiber ropes. Thereafter, each free strand passes over one rope strand and under the next rope strand as shown in Figure 613-2-6. Each free strand passes between the different rope strands to form the first series of tucks. The eye splice is made on plain-laid rope by unlaying a portion of the rope's strands and tucking these strands from right to left through the intact portion of the rope in a manner similar to weaving. This prevents uneven loading of the eye.Ħ13-2.5.2 EYE SPLICE IN PLAIN- LAID ROPE. The rule of thumb for the preferred length of the eye is 5 times the diameter of the fitting. The eyes in mooring lines are normally 6 to 10 feet in length, depending on the size of the fittings (bitts, bollards or cleats) used. Eye, short, and long splice methods are explained in paragraphs 613-2.5.2 through 613-2.5.12. When properly installed, splices do not seriously affect rope strength.
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