Knots

The Basics (STM Skills)

Images Below are Provided by Animated Knots by Grog and Clicking on the Image Will Lead to Further Instructions

Rope Strength Loss Values Referenced from Rescue Knots for Roco Students and Sterling Rope - Guide to Rope Engineering, Design, and Use

Overhand
35-40% Rope Strength Loss
Stopper Knot, Safety Knot; Used with webbing and rope.

Overhand Bend / Water Knot
35% Rope Strength Loss
Knot used to connect two ends of webbing together to extend length or create a loop. Also used with wrap 3 pull 2 method for securing an anchor using webbing. Should not be used in rope.

Half Hitch
Basic knot; Used during patient packaging when doing a round turn w/ 3 half hitches or a round turn with a half-hitch and an overhand knot.

Square Knot
Knot used when trying a seat harness to secure the two ends of webbing. Should not be used in rope.

Figure 8
20-25% Rope Strength Loss
Stopper Knot; Basis for other knots used in rescue with rope; creates smooth bends thus minimizing the reduction of strength of rope.

Figure 8 on a Bite
20% Rope Strength Loss
Creates a loop at the in the rope to connect to.

Figure 8 Bend
19% Rope Strength Loss
Knot used to connect two ends of a rope together.

Figure 8 Follow-Thru
20% Rope Strength Loss
Used to secure a loop of rope around an object. Used during rigging in place of a carabiner to secure the end of the rope.

Double Fisherman
21% Rope Strength Loss
Knot used in cordage to create a prusik loop, can be used to secure the ends of two ropes together to extend the length.

Prusik Knot
Utilizing a prusik loop knot used as a rope grab in various applications to grip the rope.

Emergency Seat Harness
Non-redundant seat harness used in situations when feet will not leave the ground and requires a rapid method of donning.

Tensionless Anchor
Three or more wraps around a large secure object using rope to provide and very strong anchor.

Wrap 3 Pull 2 Anchor
Utilizing a piece of webbing to wrap an object 3 times and then tying an overhand bend to secure the ends then pulling the two loops that do not have the knot to create a secure anchor point around an object.

More Advanced Ropework (FTL Skills)

Munter Hitch
Used in conjunction with a steel carabiner, the munter hitch can be an effective means for rappelling, as well as, lowering a load.

Butterfly
25% Rope Strength Loss
Provides a secure loop in the middle of a rope, as well as, can be used to isolate a section of bad rope.

Redundant Seat Harness
Redundant seat harness used in vertical situations when a sewn harness is unavailable.

Terrain Scenarios

BUD - Downhill
Basic belaying downhilll during a semi-technical evacuation on low angle terrain.

DUB - Uphill
Basic belaying uphill during a semi-technical evacuation on low angle terrain.

3:1 (Z-Rig) Pulley System
Basic pulley system used to gain mechanical advantage during an advanced semi-technical evacuation on steep terrain.

Where Are These Used in a Rope Rescue System?

A great resource discussing the physics of rope systems:
Salt Lake County Sheriff's Office - Rescue Physics Lecture