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5Feb14 TAC Class. Knots and their usage The right knot, in the right place, at the right time. Agenda. 550 Cord/ ParaCord Tension Knots Clove Hitch Taught Line Hitch Two Half Hitches Loops Bowline Wireman’s Knot Figure of Eight Trucker’s Hitch Securing Square Knot Sheet Bend. - PowerPoint PPT Presentation
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5Feb14 TAC Class
Knots and their usageThe right knot, in the right place, at
the right time
Agenda• 550 Cord/ParaCord• Tension Knots
– Clove Hitch– Taught Line Hitch– Two Half Hitches
• Loops– Bowline– Wireman’s Knot– Figure of Eight– Trucker’s Hitch
• Securing– Square Knot– Sheet Bend
550 Cord / ParaCord
• Nylon kernmantle• General Purpose utility
cord• MIL-C-5040H Type III– 7-9 core yarns (3 per)– 32-36 strand sheath– 30% elongation– 550lbs breaking point– Weight: 225 (69m) per
pound
Tension Knots
• Relies upon the friction of rope-on-rope or rope-on-object to remain tied
• The more tension applied, the more efficient the knot becomes
• Most are easily adjustable without loss of tension
Clove Hitch
• Uses– General Purpose Hitch– Starting and Finishing
Lashings• Easily untied• Adjusts length of rope– Not adjustable without
loss of tension
Taught-Line Hitch
• Uses– Periodical adjustment– Securing tent/tarp lines– Securing Loads
• Easily tightened and loosened
• Requires periodical adjustment for heavy loads
Two-Half Hitches
• Uses– Attaching Rope to a
pole / object– Safety knot– Used in conjunction
with other knots for extra tension
• Can be difficult to untie
Loops
• Utilize sections of the knot to form a loop• Tension on the loop increases knot
effectiveness• Easy to reinforce (___-on a bite)
Bowline
• Uses– Form a fixed loop at the
end of a rope– Rescue Knot
• Easy to untie even after under a load
• One-handed bowline
Wireman’s Knot / Farmer’s Loop
• Uses– Form a fixed loop– Form a loop and allow
for continuation of the rope
– Tighten loads– Pull a rope taught
• Pulley Mechanical Advantage
Figure of Eight
• Uses– Create a loop at the
end of a rope– Create a stop(s)
• Difficult to untie after put under tension (ex. Figure eight on a bite)
Trucker’s Hitch
• Uses– Cinch down loads– Secure objects to each
other– Pull a rope taught
• Pulley Mechanical Advantage
• Easily untied
Securing
• Use rope-on-rope friction to remain tied• Secures two or more ends of a rope together• Connects different sized rope
Square Knot
• Uses– Secure a rope around
an object– Binding objects– Secure two ends of
rope (not recommended)
• May be difficult to untie after put under tension
Sheet Bend
• Uses– Secure two ends of
rope together– Secure different
diameter ropes together
• Easy to untie• Rapidly untying ropes
(slippery sheet bend)
Practical