THIS IS VIDEO 1 OF 10 - See textbook π https://tinyurl.com/yckmwww6
Here is a free course featuring Brent Roth about different ways to set up rappels through a canyon. This considers ease of rigging, abrasion, ease of rescue and how efficient it is to move people through the canyon.
Episodes 1-5 show the systems,
Episode 6 shows how it can all be done with 1 device,
Episodes 7-8 are friction tests,
Episodes 9-10 are break tests of the hardware and the knot blocks.
These will be released every Wednesday until they are all out. See the textbook.
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