In actual fact, a single Brummel (two passes), such as used on Ichor Coal, can hold only 40-60 percent of breaking strength before failing, which it did.Ī better construction, when space is limited, is two separate spliced loops, as used on manufactured products such as Harken LOOPS or pre-spliced low friction rings from Antal, Nautos, and others.
#Brummel eye splice full#
Directions are as follows: Mark A Mark B 2 fids 1 fid 1A Leave tail at full volume. Overlapping with the previous tuck, pass the splicing tool up the other side and pull. SPLICING FIXED EYE Using these measurements do the Locked Brummel Splice. Pass the splicing tool up to exit beside the first tuck. Pass the first end and then the second to make a Brummel Eye Splice. This decision was based on the misconception that a Brummel lock actually “locks” the lines together and can carry safely load. Creates a rope loop using hollow-braid rope. In practice, using a fid makes the process easier, especially when passing the long buried tail up the center of the standing end. Neither adds much strength to the splice, and both are intended only to stabilize the splice when unloaded, something all splices can benefit from.īecause there was not enough space for a long bury on each tail, the rigger apparently relied on the Brummel lock alone to carry the load. Brummel Structure: The animation shows how the Locked Brummel Splice can be tied when both ends are available to be threaded through the rope. The two ‘legs’ are usually attached to cleats either side of the bow or to the aft quarters. This could be a soft eye around a fitting or hard eye formed around a stainless thimble. To prevent the long bury splice from loosening as the rope flops around unloaded, the tail is locked in place at the base of the eye with either lock stitching or a Brummel lock. The Jimmy Green V-bridle consists of a continuous line made into a V-shape with a central brummel locking tuck splice. Like a paper finger trap, the harder the rope pulls, the more the herring bone weave contracts on the buried tail. The standard method for forming eyes in hollow braid ropes, like that in question, is a long bury splice, where the tail is about 72 line diameters long. High Modulous Polyetheylene (HMPE) ropes, like the Marlow D2 Racing Rope used on the Clipper boat or Amsteel, must be spliced using product specific procedures.Īll common sailing knots will slip at a small percentage of breaking strength unless modified, and even then, the low stretch nature of HMPE makes them low strength (poor load sharing). In addition, the preventer was led at a very acute angle to the boom (see PS June 2017, “ The Best Prevention is a Preventer“)Īccording to Great Britain’s Marine Accident Investigation Board, the failure was traced to a poor choice of splice. This type of Brummel can only hold about 40-60 percent of the breaking strength of the line. CHICAGO MARINE RIGGING OFFERS 12 STRAND 'LUGGAGE TAG' EYE SPLICING FOR HI-TECH SINGLE BRAID ROPES INCLUDING DYNEEMA, VECRTAN, AND TECHNORA.
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