Twin Highline Unit 4 : Twin Highline Tensionless Anchor

Written By: Lance Piatt


The fourth installment of the Twin Highline series. This unit describes the tensionless anchor at the top of the Twin Highline, which is placed at or near where the rescuer or worker will descend down from. A Tensionless hitch is an anchor knot used for repealing or rope rescue. Unlike most knots, the tensionless hitch retains a 100% efficiency rating, meaning the rope looses no weight-bearing ability when this knot is tied in it. In this system, the worker enter the workspace via the track line / high line system. He moves about the “platform” by using Petzl Ascenders, Petzl I’d, Rock Exotica Pulleys, Petzl ASAP (as his fall protection device). For more on this topic and others, see Rescue Response Gear at


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