How Not To Raft: Testing 3:1 Systems
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In this video, we teamed up with Ryan from Hownot2 to learn more about d-rings in wrap scenarios. We wanted to understand how much stress the river puts on a boat. We also were looking to understand how much force a d-ring could bear before popping off. We had a couple of surprises including The failure points in both general break strength and in shear as well as how much force you need to get the raft off. Before all of that though, we had to do some serious gymnastics to get a boat wrapped on a rock. Huge shout out to our friends at SOTAR Whitewater Manufacturing for helping to support this video with some samples to absolutely wreck.
You can watch both videos at: www.raftingmag.com/rafting-ma...
You can also check out more of Ryan's content at: www.hownot2.com/
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That was really interesting. Thank you.
Great video Trevor, thanks!
@RaftingMagazine
2 жыл бұрын
Thanks Sean, Hope it helped shed some light on what kind of forces we are dealing with out there.
Great information. Can you explain the difference between Gore Tex and Gore Tex Pro, and which we should look for in paddling clothing, particularly dry suits?
@RaftingMagazine
2 жыл бұрын
Hopefully this video can help: kzread.info/dash/bejne/kYdsz5Rwnq_ZfJM.html Ultimately there is very little difference between Gore-Tex and Gore-Tex Pro other than a bit more elasticity in the ePTFE. Naturally they are pretty tight lipped about the formula, but in paddling clothing it really doesn't matter that much on what specific formula of ePTFE is used since they all work on the same principal. That is high humidity on one side of the fabric and low humidity on the other causes the ePTFE to pull moisture away from your body. Unfortunately in paddling the outside and inside of the ePTFE layers experience a similar level of humidity so it can be somewhat inefficient at pulling moisture out of the suit unless you are on a particularly arid section of river or you are not getting splashed that much while you are heading down river.
Another method to try if you don’t have all the gear needed is to deflate one side. If a boat is evenly positioned on a rock, deflate one side and then set up your ropes on the other sides down stream D-rings and try to get that end full of water and pull for dear life. Granted if you don’t have prusiks and extra caribiners, it’s worth a shot. Could make it worse or it could slide off. I have been rafting for 30 years and the reality is often times many guides just don’t carry all they need. Especially on play trips. It’s not often you pin a boat, but anything can happen. Another factor is on a wider river you might not have the length of rope you need to set up a proper z drag. It’s an option I have seen work while in a pinch. Just saying…..
The raft didn't want to wrap initially. Eventually it did.
Thanks for testing. Very interesting. Do you know this one: kzread.info/dash/bejne/mKqGsLhrc6rMh7Q.html They got 11kN in their tests. But they used brand new material. Would be interesting to see the difference to older equipment.