The inline figure eight reduces rope strength by what percentage?

The inline figure eight is a common knot used in various rope rescue applications due to its reliability and ease of untangling. When tied, this knot causes a reduction in the strength of the rope due to the bend introduced in the fiber structure. The accepted reduction in rope strength for an inline figure eight is approximately 25 percent. This percentage accounts for the energy that is absorbed by the knot, which alters the load distribution and creates points of stress concentration within the rope. Understanding this reduction is critical for rescue personnel, as it highlights the importance of considering knot strength when calculating overall safety factors and load capacities in rescue scenarios.