The "crtical point test" (aka "scissors test") requires that if any one item fails, nobody should be injured.
A "bend" is a knot that joins two ropes.
A "hitch" is a type of knot that that must be tied around another object.
The "whistle test" requires that if all rescuers let go, nobody should be injured.
Figure 8 knots are undeniably the most common rescue knots. They can create connection points (figure 8 on a bight), be tied directly to a harness (figure 8 follow through), and can join the ends of two ropes (figure 8 bend). They are strong, easy to recognize when tied correctly (as well as when tied incorrectly), and are relatively easy to untie after being loaded.
The knot shown here is called a "figure of 8 skeleton," because it is a bare bones figure 8 knot. The figure 8 skeleton is the starting point for the figure 8 follow through and figure 8 bend.
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