Knot Reference

Reference

Knots

• Bowline Forming a fixed loop at the end of a line; rescue and rigging.Strength reduction: 30 to 40 percent of rope tensile strength.; Note: Easy to untie after loading; does not slip if dressed correctly.
• Clove hitch Securing a line to a post or anchor.Strength reduction: 40 to 50 percent of rope tensile strength.; Note: Can slip under uneven loading; back up with a half hitch.
• Figure-eight on a bight Forming a strong, easy-to-inspect loop in the middle or end of a rope.Strength reduction: 20 to 30 percent of rope tensile strength.; Note: Standard rescue knot; jams less than the figure-eight follow-through.
• Double fisherman Joining two ropes of similar diameter.Strength reduction: 20 to 30 percent of rope tensile strength.; Note: Strong and reliable; difficult to untie after heavy loading.
• Munter hitch Improvised belay or rappel device.Strength reduction: Adds friction; not a strength-reducing knot per se.; Note: Twists the rope under load; preferred in emergencies only.

Checked against published worked examples from: IFSTA + Mountaineers knot reference (project bundled).

Related tools

• Rope Rescue Mechanical Advantage
• Sling Angle Load Multiplier
• Hand Signal Reference