How much force does it take to RAPPEL in different modes?

THIS IS VIDEO 8 OF 10 - See textbook 👉 https://www.hownot2.com/post/canyon-rope-systems

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.
All the episodes are in the textbook

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00:00 - Intro
00:06 - Modes & Friction Settings Of Rappel
01:49 - Testing PALIKOA
06:13 - Testing CRITR 2
08:43 - Testing HOODOO
10:05 - Testing PETZL
11:49 - Things about These Tests
13:59 - Testing SQWUREL
16:23 - Testing PIRAN