Disaster Rescue - Australian Emergency Manual (Natural Disaster Organization, 183 p.): CHAPTER THREE - ROPES, CHAINS AND SLINGS: Knots: Bowline on the Bight (Figure 3:31)

Disaster Rescue - Australian Emergency Manual (Natural Disaster Organization, 183 p.)

CHAPTER THREE - ROPES, CHAINS AND SLINGS

Knots

		(introduction...)
		Thumb Knot (Figure 3:16)
		Figure of Eight Knot (Figure 3:17)
		Double Sheet Bend (Figure 3:18)
		Buntline Hitch (Figure 3:19)
		Fisherman's Bend (Figure 3:20)
		Double Fisherman's Knot (Figure 3:21)
		Half Hitch (Figure 3:22)
		Clove Hitch (Figures 3:23 & 3:24)
		Round Turn and Two Half Hitches (Figure 3:25)
		Timber Hitch (Figures 3:26 & 3:27)
		Figure of Eight Loop/Figure of Eight On the Bight (Figures 3:28 & 3:29)
		Bowline (Figure 3:30)
		Bowline on the Bight (Figure 3:31)
		Chair Knot (Figures 3:32 & 3:33)
		Portuguese Bowline (Figure 3:34)

Bowline on the Bight (Figure 3:31)

3.39 Bowline on the Bight (Figure 3:31)

If you need a secure loop a Bowline or a double figure of eight is used, but if a double loop is required a Bowline on the Bight is a useful knot. It can be used for hauling or lowering a rescuer up or down a vertical face, either with one leg through each loop and holding the standing part, or with one loop around the hips the other under the arms. It can also be used in raising or lowering a stretcher or ladder horizontally.

To tie, double the end up the standing part to make a good long bight and take the doubled rope in your left hand. Using the double rope, form a loop at the top as in the ordinary Bowline and feed the main bight up through the loop from behind until you have as much of the bight above the loop as below it. Take hold of the upper bight and bring it down, over and behind the lower loop. This produces two lower loops. (Figure 3:31). Holding the knot in place, pull on the loops until the knot is tight. This knot has to be dressed and shaped to the function for which it is going to be used.

Fig 3:31 Bowline on the Bight