Rappelling with an ATC on a single rope
|
Mark Hudon congrats on your free climb! |
|
I put little faith in the fireman’s belay, though I do it once in a while when it seems wise (e.g., pendulum risk). |
|
Mark Hudon wrote: Okay, Beginners... you need to buck up and start using your brains and common sense. I’m seeing way to many of you out there not really knowing what you are doing. Seems like an underwhelming story where you could have been a mentor, but instead took the the internet to belittle people who are learning. Is this what Mt. Project is for? |
|
Ok.... Deep breath... I'm about to go out on a limb and disagree with rgold. rgold wrote: My point was you don't send a novice down on their first rappel with a fireman's belay as the only safety measure. If you approach it correctly then you cetainly can do this safely. rgold wrote: which means they have to get started all by themselves with no one right there to help out.You pre-rig their system. They are on belay the whole time held safe by your weight and their safety. If they are fearful any you are worried they might have difficulty beginning the rappel then there are alternatives. rgold wrote: The fireman's belay position is also a bad place to be if the rappeler gets stuck.It is better than a common alternative of being above the rappeler. Ascending from below to the stuck rappeler is pretty feasible. Descending a taught line is much less feasible rgold wrote:Well that is a problem of application. If you are in a secure position and have visual sight of the other party then providing a fireman's belay is fairly trivial. rgold wrote:Who says that it is for emergencies only? There are many advantages of a straight lower from above however this may not be ideal in many circumstance such as multistage raps, poor communication. It also does little to train in rapelling which is pretty important. |
|
rgold wrote: By the way, I've heard of incidents in which the "fireman" had a lot of trouble controlling the rappeller, typically, I think, when the rappeller is near the top and there is a lot of rope out. My sense is that most people who deploy a fireman's belay haven't actually tested its effectiveness in any but an almost trivial situation. I’ve stopped someone with a fireman’s belay when they pendulum’d and then cartwheeled upside down over a low-profile rib. It was a beginner who did not appreciate the pendulum risk he took by trying to follow “high ground” that worsened an already angling rap. On that one, I had some visual warning over time that the need for the fireman’s was going to happen. On the other hand, I once tried to control someone’s otherwise normal rap for them (planned) with a fireman’s. Stopping them was fine. But releasing them was surprisingly hard to control without dropping them a few feet to a hard stop (whew!). The fireman’s belayer lacks the positive feedback from the rope slipping through his/her grip as in a normal rap at that point when the static kink in the rope from being locked off finally slips through.Add what I said upstream about the need for sustained focus to stop the unexpected at a moments notice, leads to my agreement that the fireman’s belay is a half measure for hopeful thinking about dealing with an emergency and not a good idea for an early beginner (even if there is confidence in their threading the device correctly). Better the person rappelling has a normal backup belay from above until they decide they are ready without it. I am still intrigued about normally belaying from above during multi-raps where first person to rap does it on a single strand. I suspect two people with a shared plan for it can be only slightly less efficient than the normal two-stranded rap for the first ... back on topic! ;) |
|
Patto, I perhaps I didn't make it clear that I was contrasting the fireman's "belay" to an actual belay from above, which doesn't suffer from any of your objections. And when teaching someone for the first time, I try to find a situation where I can rig the rappel line with a munter mule, so that if the learner totally freezes or get hair/clothing caught, they can be lowered to the ground from above (so only half a rope length...) |
|
I’m curious to understand better the issues releasing the fireman’s that Bill and rgold are describing. The couple times I’ve provided one we had no issue with this—the rappeller communicated that they were ready to resume descending, I communicated “back on you,” and they carried on without incident. These were both experienced climbers, though, so perhaps that was part of it? Is the issue that people are trying to start moving immediately upon the fireman’s being released, or that they aren’t aware of the braking position/force necessary to remain stationary after the fireman’s is released? |
|
Dave K wrote: Obviously my standards are rather different. But I suspect the circumstances are far more controlled than taking someone up a climb and then having then rappel for the first time. |
|
Etha Williams wrote: I’m curious to understand better the issues releasing the fireman’s that Bill and rgold are describing. The couple times I’ve provided one we had no issue with this—the rappeller communicated that they were ready to resume descending, I communicated “back on you,” and they carried on without incident. These were both experienced climbers, though, so perhaps that was part of it? Is the issue that people are trying to start moving immediately upon the fireman’s being released, or that they aren’t aware of the braking position/force necessary to remain stationary after the fireman’s is released? Part of the problem is that I haven't had any issues personally when I've tested fireman's belaying, I've just read about some problems over the years. As I said, the issues seem to be related to how far above the bottom the rappeller is. Other variables are of course rope diameter, suitablility of the device, and any rope friction that might impede the effectiveness of tension from below. I use a fireman's belay all the time with experienced partners, and have said over and over again that it is actually preferable to having people rappel with a friction knot backup, so I'm hardly anti-fireman's. I just think it is a poor way to teach a complete beginner how to rappel, and that's no matter what the US Army thinks. |
|
There's a rather eye-opening test out there on the internet (related to grip strength) about the effectiveness of the firemans belay from a guy doing bridge rappels, I'll see if I can track it down. |
|
Etha Williams wrote: I’m curious to understand better the issues releasing the fireman’s that Bill and rgold are describing. I was not very clear. The sudden drop I mentioned was when the fireman’s belayer tried to lower the person after having first stopped them (e.g., person rappelling somehow becomes incapacitated, fell, was caught be the fireman’s belayer who then tried to control their descent the rest of the way). |
|
rgold wrote:One thing I do so improve the chances of control in the fireman's belay is that I leave the rope in my rap device, so that I can jump-take if I need to apply more load than just pulling with both arms. (This also allows for a more gradual and controlled release of tension.) Makes sense ... though I would advocate standing up as part of releasing some tension ... so you can drop once again to re-take if needed. |
|
Jim Titt wrote: There's a rather eye-opening test out there on the internet (related to grip strength) about the effectiveness of the firemans belay from a guy doing bridge rappels, I'll see if I can track it down. This may be it: THE EFFECTIVENESS OF A BOTTOM BELAY ON LONG DROPSIn summary this testing suggests some points to consider for an out of control rappeller. |
|
Dave K wrote: If there is something that can go wrong with a fireman's belay, I'd need to hear more specifics before I'd change my approach. Things can go wrong. Some are in the summary from the bridge testing. It's just not something in which I put a lot of faith. Others have more faith. |
|
Bill Lawry wrote: Basically the trade off is not that much. Clip a HMS binner and that's it. When rappeling in alpine environment I almost always coil a rope I'm about to rap on and attach it to my harness. I have a strong preference of having my rap rope on me versus dropping it somewhere it almost sure will stuck. |
|
Dave K wrote: The (climber) mass was often far from being at the top. Edit: it is not that I want to convince everyone to stop doing that fireman‘s belay. I have plenty of climbing partners who ask for it. I earnestly support them. |
|
Bill Lawry wrote: 800’. Different equipment?!??? Not even remotely relevant to climber rappels or this discussion. C’mon people. |
|
Greg D wrote: Test # 2 Our mass of 175 lbs. was attached to the SMC stainless steel rack that was rigged with 4 bars and raised to a height of 115 ft. After the release of the test mass the belayer was unable to stop or slow the mass and it impacted the ground. |
|
rgold wrote: Why four bars? SMC sells a six bar rack for rappelling with hands free rest. How many bars are equivalent to a tubular belay device?When the debate has reaches this point, it’s pretty clear recommending a rappel without backup only qualifies as genius in an Apple store. |
|
Live Perched wrote:I don't know. How many bars are equivalent to a tubular belay device?BITD when we used carabiner brakes, more than two bars was never necessary. I suspect they had more friction in the system than a belay plate but don't know for sure When the debate has reaches this point, it’s pretty clear recommending a rappel without backup only qualifies as genius in an Apple store. me Well, which debate are you speaking of, as there are several parallel ones at this point. One debate has to do with the use of a fireman's belay for a beginner's first rappel experience. My post above addressed whether the tests from an 800 foot bridge were relevant to ordinary climbing rappels, by noting that two of the tests in which failures were experienced were from heights within what climbers encounter. My recommendation for using a fireman's belay and no rappel backup for everyone after the first person down and experienced climbers comes with the suggestion to keep the rope in the belayer's rap device so that they can perform a "jump-take." This allows for significantly more tension in the rap lines than can be achieved by the belayer just pulling on them. |