Ordinary requirement 7: Seamanship
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).
Name the various materials used for rope, the advantages and disadvantages of each, and the characteristics of laid and braided rope. Understand the meaning of lay, thread, strand, and hawser.
Demonstrate the ability to secure a line to pilings, bitts and rings, and to coil, flake, and flemish a line. Know how rope is sized and measured. Demonstrate how to cut and heat seal a synthetic line.
Click any image for
an animation of the knot
Overhand Knot
Used a a stopper knot, but will jam when pulled too tight
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Stevedore's knot
Used to prevent the end of a fall from running thru the large swallow of a cargo block
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Bowline on a Bight
Used to create two non-adjustable loops
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Timber Hitch
Useful for hoisting or lowering a spar
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Rolling Hitch
An effective hitch to a pole or spar where constant tension is maintained
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Marline Hitch
Used to lash canvas to spars
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Midshipman's Hitch
Used to create an adjustable loop under tension; similar to the tautline hitch except that the second turn is jammed inside the first to increase friction
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Double Bowline (French Bowline)
Used to create two non-slip loops that adjust one on the other
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