Span loop

A span loop is a non-jamming loop that can be tied away from the ends of the rope.

Span loop
Category	Loop
Related	Butterfly loop, Farmer's loop, Artillery loop
Releasing	Non-jamming
ABoK	#1049

Information

The span loop is known for being extremely easy to untie. The beginning of tying this knot begins with tying a Half Sheepshank, which is also known as a Bell Ringer's Knot. In order to tie this, the same one-handed twist method employed for tying a bowline can be used. One bight or loop will poke up through the half-hitch, and it will perfectly match the end of the rope that is also poking up through the signature half-hitch part of a bowline as it is done with the one hand twist method. The next thing to do is to push the bottom loop back up and through the top loop. ^[1]

• 
  half a sheepshank
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  loop through loop
• 
  untightened
• 
  tightened