How strong is a Petzl 8 descender?

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

Intro
00:10 - Descender 8 as Anchor
00:59 - Canyon Course
01:54 - Dyneema sling girth hitch
03:11 - Descender 8 Eye
04:14 - Descender 8 End to End
04:38 - PALIKOA Break Test Try #1
07:02 - PALIKOA Break Test Try #2
08:57 - PALIKOA Break Test Try #3

[kdnrh]

So the palikoa is good for roughly three falls...while rappelling with your entire anvil collection.

[ThatRagamuffin]

I think you guys just made the best ad the palikoa could have asked for. I'm not even a climber and now I want one.

[thepengwn]

I really appreciate not giving up when stuff won't break. Not sure if the economics are there, but it's definitely my favorite part of the video.

[jkerrigan]

I would love to see some higher frame high speed camera shots on some of these breaks. Im fascinated by seeing these materials under high stress before a failure.

[chatttenn]

That's a mighty fine tuning fork you have there!

[northwiebesick]

Whatever those things he was testing last were, holy guacamole, them are tough to put a dent into apparently...

Not a climber myself, aside from a little gym style climbing and carnival trailer setup climbing when I was younger, on equipment that was owned by the carnival/building owners, and so only know the VERY basics, mainly just the belay instructions and whatnot. Most everything else I'd probably need a tiny refresher on... These videos are very informative though, so I watch them once in a while, when I want to see stuff break...

[Petrosilius]

You spelled 'weird' in thumbnail wrong my brother.
Thank you for your work & love from Germany

[isaacbolivar]

“This whole test is pointless the hydraulics stop at 49kn “ 😂

[Savirezz]

I wonder how strong that carabiner attached to the contraptions in every videos

[John-eqcu]

You kept trying to break it, but I would have stopped at 40+ and labeled it as "unbreakable" - and bring THAT into the canyon!

[S_Breaux]

The Palikoa’s like twice as strong as I thought it would be! That’s awesome!

[spaceman]

I would like to see a video on the micro rack, I don't really trust the 2 nuts on the end...

[SlackLineflowbalance]

Thank you for this info. I think that is posible that found diferent with torsion force.

[Kevintherubiconjeep]

Damn the creaking noises at the end. Well done. I figured those would be tough stuff.

[soopersooper]

Can't wait to see it on the store.

[shermanhofacker]

Would it ever be loaded like that? I have never used any 8 in that configuration!

[AdamEdington]

Now I know what I can make out of my 80x15 mm titanium flat bar

[markifi]

how is the palikoa pivot so strong? it has a small eyelet like any other device. incredible

[FranklinHarding]

Can you please break a CT Roll n Lock? It would be really interesting to see whether the 4kN rating is accurate or if it's higher!

[RafaelFaenir]

I don't do canyoning and I don't even like 8 descenders... but this video was still very entertaining! The Palikoa being so strong is very wird indeed, I wonder what kind of aluminum alloy is it, and what kind of heat treatment it went through!... Must be a precipitation hardening alloy with very low temperature (low like ~150°C, i mean) and many many hours to reach such strength!