What knot retains 96% of its rope strength?

The butterfly knot is designed specifically for situations where you need to create a fixed loop in the middle of a rope. One of its key advantages is its ability to retain a high percentage of the rope's overall strength—up to 96%. This makes it an excellent choice in rescue scenarios where maintaining the integrity of the rope is critical, as any loss of strength can significantly impact safety.

In contrast, other knots like the figure-eight, double fisherman, and clove hitch do not achieve the same level of strength retention. The figure-eight knot, while popular and strong, does not retain as high a percentage of the rope's original strength compared to the butterfly. The double fisherman, often used for joining two ropes, also has a different strength retention characteristic. Lastly, the clove hitch, while useful for securing a rope around an object, tends to slip under load and doesn't provide the same reliability in maintaining rope strength.

Understanding the strengths and weaknesses of various knots is crucial in rope rescue operations, and the butterfly knot stands out for its high strength retention.