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Ordinary
Requirement #7a - Marlinspike Seamanship
Requirement 7a: Using line appropriate to the craft
you normally use, tie the following knots and explain
the use of each: Overhand Knot,
Stevedore's Knot, Bowline
on a Bight, Timber Hitch,
Rolling Hitch, Marline
Hitch, Midshipman's Hitch,
and Double Bowline (French Bowline).
The
Overhand Knot
- This is the simplest stopper knot.
- Used in making other knots, rarely used alone.
- This knot only retains 50% of the ropes strength.
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The
Stevedore's Knot
- This is a stopper knot.
- It is similar to a figure eight knot.
- It is larger than the overhand and figure eight
knots.
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Bowline
on a Bight
- Used to make a a pair of fixed-size loops in a line.
- This knot can be used to make an emergency bo'sun's
chair to go up the mast or bring an injured person
aboard, or serve as a towing bridle.
- The benefits of the bowline are in its loop that
will not slip, and in its ability to be untied after
being exposed to a strain.
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Timber
Hitch
- Used to attach a rope to a log, or where security
is not an issue.
- This knot tightens under strain, but comes undone
extremely easily when the rope is slack.
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Rolling
Hitch
- Used to tie a line to another line which is under
a strain.
- This knot can also be used to tie fenders to railing.
- It has also been used to tie a second line to a
tow line, making a towing bridle, but is not the optimum
knot for that purpose.
- Un-Jamming with a Rolling Hitch:
- Sailors often will use this knot to take the strain
off of a jammed line, such as a jib sheet which
is jammed by a winch overrun.
- A rolling hitch is tied to the jammed line and
then run to a secondary winch.
- The strain can be taken off of the jammed line
so it can be freed.
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Marline
Hitch
- Used to lash canvas to a spar.
- Remember “Over then Under”
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Midshipman's
Hitch
- Also known as a Tautline Hitch.
- Excellent guy line hitch if a slider on a guy is
broken or missing.
- You can tighten or loosen the line by pushing the
hitch up or down on the standing part of the hitch.
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Double
Bowline
- Also known as a French Bowline
- Used to create two non-slip loops that adjust one
on the other.
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Marlinspike Terminology
- A knot is made, never tied.
- A hitch is taken or made fast.
- A splice is put in.
- Putting two lines together is bending.
- A tangled line is cleared by overhauling it.
- A line is coiled down, never up.
- A knot that is fouled or loosens is capsized.
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