Wednesday, June 22, 2016

MLS Seamanship Series – Marlinespike

Figure Eight Knot
Good knots are easy to tie, are easy to untie, and hold well.  A good knot will not untie itself.  In sailing vernacular, a knot is used to tie a line back upon itself, a bend used to secure two lines together, and a hitch is used to tie a line to a ring, rail or spar.  A knot used to secure a line to an object, such as a ring or eye, is a hitch.  The knots listed below are those most commonly used in boat operations.

Reef Knot
A figure eight knot is an overhand knot with an extra twist.  It will prevent the end of a line from feeding through a block or fairlead when loads are involved.  It is also easier to untie and does not jam as hard as the over hand knot. This knot resembles a figure eight and is also known as a stopper knot.

Becket Bend
Called a square knot by Boy Scouts, the reef knot is one of the most commonly used knots in marlinespike seamanship.  Reef knots are primarily used to join two lines of equal size and similar material.  Reef knots do not effectively hold two lines of different sizes or diameter. Caution should be used if the line is going to be under heavy strain since the reef knot can jam badly and become difficult to untie afterwards.  Reef knots are best used to finish securing laces (canvas cover, awning, sail to a gaff, etc.), temporary whippings, and other small stuff.

The sheet bend also known as becket bend is a bend that joins two lines that are if unequal size and diameter together.  It is the best knot for attaching a line to an eye splice and can be easily taken apart even after being under a load. When tying the sheet bend the running parts should be left long because there is some initial slip in the knot when the knot is first brought under tension.

The sheepshank is a type of knot that is used to shorten a rope or take up slack. This knot is not stable. It can easily just fall apart under too much load or too little load. The knot has several features that allow a rope to be shortened:
  • It provides two loops, one at each end of the knot which can be used to pass another rope through
  • The knot remains somewhat secure under tension; the coarser the rope the more secure it is (see Disadvantages, below)
  • The knot falls apart easily when tension is remove
The bowline is a versatile knot and can be used anytime a temporary eye is needed in the end of a line.  It also works for tying two lines securely together, though there are better knots for this.  An advantage of bowlines is that they do not slip or jam easily.



At June 6, 2016 at 8:03 AM , Blogger Unknown said...

I love when techniques like these are demonstrated in laymen's terms.

At June 7, 2016 at 9:37 AM , Blogger Jean Dextraze said...

Thank you very much!! A great refresh!

At June 7, 2016 at 9:37 AM , Blogger Jean Dextraze said...

Thank you very much!! A great refresh!

At September 26, 2016 at 7:20 AM , Blogger Romilda Gareth said...


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At October 2, 2016 at 9:27 PM , Blogger Alice Taylor said...

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At July 19, 2017 at 7:26 AM , Blogger Unknown said...

Good refresher

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Thanks a lot! Right technique!

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