Rescue Methods FR1: Rope Rescue Critical Angle Concepts

In this video, RM president Dalan Zartman discusses and illustrates some general theories about angles within high angle systems.

[@KyleA901]

That was brilliantly explained.

[@CashCaveman]

Congratulations! Best explanation on the subject I've ever seen so far. Excellent video all around. It's encouraging to see colleagues being so professional, definitively taking another step forward in the making of better true rescue technicians. Greetings from Caracas, Venezuela. Hope to work with you guys some day!

[@markmonahan]

very nice explanation and props

[@James-ke5sx]

Nice video. I noticed towards the end you only have one single carabiner holding your white and blue anchor straps together. I hope you have more videos I'm going to go check your site

[@BenyaminMentchale]

Nice! Very methodical. Illustrates brightly the issues and considerations at hand. TNX

[@cetree201]

Love this video. Really loved it.

[@johnkaltenbach5540]

To help determine what your load will be on each leg of your anchor system you can use the formula F = (m * 0.5) / cos(a * 0.5) where F = the resultant force, m = the mass of your load and a = the internal angle between the legs of your anchor system. Using this formula you will find that at 60 degrees you distribute around 57% of the load to each leg, 71% to each leg at 90 degrees and 100% to each leg at 120 degrees. Below 60 degrees your load distribution on each leg drops very slowly, but above 120 degrees the load distribution climbs dramatically.