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Marlinspike Splices Word File (printable)

    Marlinspike Splices

Splices make a more permanent joining of two lines or two parts of a line.It is done by unlaying the strands or parts of the line(s) to be spliced and then putting the strands or parts back together to form a new union. The type of splice used depends on the type of joint and the type of line. On Coast Guard boats the most common splices are eye splices at the working end of the towline, side lines, and mooring lines. Because double splices in braided nylon is the accepted line for towlines, eye splices in double braid will be  shown. For those people who use three strand nylon for mooring lines, three strand eye splices will be illustrated. Additionally, directions for three strand back slices are given. They are a handy way for finishing off the ends of the lines on fenders and three strand heaving lines.

 

Eye Splice

Eye splice in three strand plaid laid line, which makes a permanent loop (the eye) in the end of a line. Refer to figure 1-1 as you follow the steps below.The eye splice makes a permanent loop (the eye) in the end of a line. Refer to figure 7-30 as you follow the steps below.

 

Step

Procedure

1

Unlay the strands of the line about 12".

2

Make a bight the size of the eye required.

3

Hold the strands up so the middle strand is facing you.

4

Tuck the middle strand a.

5

Cross strand b over the strand just tucked and then under the

strand just below it.

6

Turn the entire eye splice over and tuck strand c.

7

Pull all strands tight.

8

Pass each strand over the adjacent strand and under the next

strand until there are three tucks in each strand (Synthetic line

requires an additional tuck).

 

NOTE $ $  

Always tuck the middle strand first and keep the right-hand strand of the side of the line that is facing toward you. All tucks are made from outboard toward you.

 

 

                                             Eye Splice (Three Strand)

 

 figure 1-1

  

Back Splice

Use a back splice in three strand plain laid line to finish off the end of a line. On Coast Guard boats it can be used on the ends of fender lines. Start with unlaying the strands at

the end. Then bend them back on the line, and then interweave them back through the strands of the standing part. The procedure for making a back splice are as follows: (See figure 1-2.)

 

Step

Procedure

1

Begin the back splice by tying a crown knot. Each strand goes

under and out from its neighbor in the direction of the lay.

2

Pass each strand under itself, just beneath the crown knot. Do

not pull these first tucks too tight.

3

Proceed with three more rounds of tucks - over one, under

one, as in an eye splice.

4

If preferred, it can finished by trimming the ends of the strands.

 

                                       Back Splice (Three Strand)

 

 figure 1-2

 

Short splice

A short splice is used to permanently connect two ends of a line. It is important to note that a short splice is never used in a line that must pass over a pulley or sheeve. The procedure for making a short splice are as follows: (See figure 1-3.)

 

Step

Procedure

1

Unlay the strands of the lines to be spliced, about 12".

2

Bring the ends together by alternating strands.

3

Slide the two ends together, that is -- butt them and

temporarily seize them with sail twin or tape.

4

Tuck each strand over and under three times, the same way as

in eye splicing. (Synthetic line requires an additional tuck.)

5

Remove the seizing.

 NOTE $ $  

If desired, taper the short splice in the same manner as the eye splice.

 

 

                                          Short Splice

 figure 1-3