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Questions tagged [climbing]

Questions relating to climbing can include any activity that requires the use of your hands and feet to move vertically up an object, obstruction or terrain. This varies from trees to boulders to cliff faces and everything in-between.

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2 votes
3 answers
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Is climbing with static rope and shock absorber as safe as with dynamic rope?

Climbing uses specific elastic ropes that absorb the shock from the fall. I wonder if using static ropes + shock absorber (tear webbing) would achieve the same safety? P.S. There are other problems on ...
Alex Craft's user avatar
7 votes
3 answers
2k views

What is this no-harness rappel called?

I found an old police service magazine from 1969 and it has an article named "a day out with the police mountaineering section" In there I saw the picture below of a guy rappelling with ...
Henry F's user avatar
  • 73
2 votes
0 answers
41 views

how is a slackline elasticity in percent specified?

I tried to do some load and oscillations calculations based on these equations and I have a question on how manufacturers specify elasticity. It is often stated in % elongation E as a function of ...
flemmeolympique's user avatar
4 votes
0 answers
404 views

Can the Edelrid Pinch open accidentally during belay?

The Pinch is a recently released brake-assisted belay device. What differentiates it from other Grigri-style devices, is the ability to directly clip this into the harness. Edelrid is marketing this ...
Manziel's user avatar
  • 7,435
1 vote
1 answer
300 views

Why is it safe to check in climbing gear onto a flight?

In the manual that comes with my rock climbing rope I bought (black diamond) there's a picture with a death sign when the temperature goes below -62 Celsius. Temperatures outside of planes reach well ...
JobHunter69's user avatar
6 votes
3 answers
867 views

Why is it acceptable to belay from above with a grigri but not using the same movement from below?

A common practice is to belay a follower from above by connecting a grigri to the anchor and pulling down on the brake strand to take up slack. However, if you were to do this while belaying from ...
endolith's user avatar
  • 927
4 votes
1 answer
210 views

At what elevation do 50% or higher percentages of mountaineers report symptoms of altitude sickness?

I've read somewhere that above 2500 meters (8,202 ft) 20% of climbers report having had altitude sickness. IIRC they also wrote that 40% of climbers report altitude sickness above 3500 meters (11,500 ...
Johannes's user avatar
  • 247
1 vote
1 answer
116 views

Was Alison Hargreaves the second person to summit Mt. Everest without supplemental oxygen and without support?

I am reading Savage Summit by Jennifer Jordan (William Morrow, 2005), the Savage Summit being K2. Jordan also recounts the attempts on Everest by Allison Hargreaves, which culminated in her ...
ab2's user avatar
  • 23.9k
4 votes
1 answer
189 views

Can anyone ID this hitch?

This is something I use around the house, camping, tying down misc truck loads, etc. It’s a quick way to attach a carabiner to a bight, it can take load on the working, standing or both ends, it doesn’...
elkaboom's user avatar
0 votes
0 answers
110 views

LOWA renegade insole is sliding

I used my Lowa renegade for 10 years and I bought a new pair. On the first 7km the insoles are sliding back. I tried again, same problem... I just realised even with hands I can slide the insoles up ...
Attila's user avatar
  • 1
2 votes
1 answer
168 views

How can I prevent back-feeding while rope soloing?

When lead rope soloing, back-feeding (or auto-feeding) is when the weight of the rope between the anchor and soloist (the live rope) pulls extra rope through the soloist's belay device, causing a ...
erfink's user avatar
  • 4,252
3 votes
3 answers
298 views

Protect hand skin while belaying

Besides of using adequate gloves, I would like to have some safe options to decrease skin abrasion while belaying, due to the friction of the rope to lower the climber, mainly. I've come up with some, ...
Andrestand's user avatar
17 votes
4 answers
4k views

How do I tell if this single climbing rope is still safe for use?

I've lent my friend a five year old single climbing rope for a garden project. It was in meticulous condition until then. Instead of a weekend it took him more like six weeks to complete his project ...
Andreas Schwab's user avatar
5 votes
2 answers
2k views

How are different terrains, defined by their angle, called in climbing?

I started climbing 6 months ago and finally need to understand the climbing nomenclature when it comes to terrain angles. So, I would like to ask the climbers how the following angles would be called. ...
KaPy3141's user avatar
  • 153
1 vote
1 answer
248 views

What knot should I use to tie the middle of a smaller rope to a large rope?

I have a spool of smaller 3mm rope that has its end attached to a ball. My intention is to use this smaller line as a throwline that gets thrown over a tree branch which is then used to drag a ...
Jimib's user avatar
  • 13
1 vote
1 answer
162 views

Would this kind of rope ascension system work?

Can i use a petzl ascender, regular Black diamond ATC (NOTE: not guide ATC), footloop and a prusik attached with a biner to my harness to ascend a fixed rope attached to a tree? I don't have a grigri ...
Neltitekno's user avatar
2 votes
2 answers
452 views

Using running shoes to hike Mt St Helens

I am hiking/climbing Mt St Helens in 8 days, and I haven't found a pair of hiking boots that I like. My feet are very particular, and I am very concerned that even should I find a pair of boots that ...
LucasMcGraw's user avatar
0 votes
3 answers
2k views

Belaying with a figure 8 plate and weird mode

Warning, this question is about an unproven method. Do not follow these instruction to learn how to belay. I am finding hard to find any good information about this topic. I know it is possible (but ...
Dennis Fr's user avatar
4 votes
1 answer
194 views

Can a climber who has lost most or all of his/her toes climb at a level roughly commensurate with his original level?

This question is prompted by my recent rereading of Maurice Herzog's Annapurna, his account of the first climb of an eight-thousander in 1950. Herzog lost all his toes to frostbite and substantial ...
ab2's user avatar
  • 23.9k
5 votes
1 answer
263 views

When did it become commonplace to rely on Sherpas' technical skills in climbing?

I am rereading Annapurna by Maurice Herzog, the account of the first successful ascent of an eight-thousander, which took place in 1950. In Chapter VII, the following dialog takes place: [Lachenal, ...
ab2's user avatar
  • 23.9k
2 votes
1 answer
486 views

Belaying and anchoring on multipitch ice walls

While doing multipitch climbing on rockfaces, the lead climber usually finds a small ledge or something like that to anchor themselves, and pause and top belay the other climber. How does this process ...
ahron's user avatar
  • 1,841
1 vote
2 answers
5k views

What body type/shape is ideal for rock climbing?

I have been looking through footage of some of the top rock climbers in the world today (male & female) and what surprised me is how most of them don't physically look that strong and some even ...
FrontEnd's user avatar
  • 307
11 votes
7 answers
5k views

How realistic is a ceiling crawl/cling, can it actually be done?

I have very little experience with climbing and so I would like to get an idea of how realistic a ceiling crawl or just a cling actually is with the existing gear available. For clarity: This is a ...
FrontEnd's user avatar
  • 307
14 votes
4 answers
4k views

Climbing attached to a carabiner rather than tying in

I've just started rock climbing at an indoor climbing gym with a few friends. I noticed on the auto-belay walls, the was a carabiner you clip to your harness (I assume in the belay loop). Is it safe ...
Dan's user avatar
  • 273
13 votes
2 answers
2k views

Is this harness defective for having the belay loop around the belt webbing instead of the tie-in loop?

I am a beginner to climbing and bought this ClimbX harness from Go Outdoors in the UK. Someone at the gym today told me it is defective because the belay loop passes through the thin piece of webbing ...
egg's user avatar
  • 233
16 votes
8 answers
5k views

Why is there so much emphasis on in-person professional instruction in outdoor sports?

In the month of June I am looking to take my lead climbing from indoors into the outdoors. To bridge the gap between my gym skills and whats required in the "wild", I've decided to go on ...
JonathanReez's user avatar
  • 3,017
6 votes
1 answer
514 views

Must you always have something in the master point of a belay?

When building a belay with a sling, and tying an overhand knot to create a master point, I’ve seen it stated that you must always have something in all the master point loops. I assume this is to stop ...
Darren's user avatar
  • 2,433
3 votes
1 answer
153 views

Climbing rope diversion, different scenarios

I'm just getting into climbing, and I have to say I still find it hard to trust the equipment, bolts etc sometimes (even though I know accidents with that are really rare.). Anyway, I try to ...
Anton Neundorfer's user avatar
4 votes
2 answers
219 views

How to rig a haul bag so I can move it up/down while midair?

I have a fixed vertical line that can be ascended/descended. I need a bag (a bucket with tools, actually) when I'm hanging mid-air, and need to move it up/down. The bag is over 20 lbs / 10 kg so I ...
Alexander's user avatar
  • 1,770
1 vote
0 answers
48 views

Ascending/descending single climbing rope without any other gear [duplicate]

I am interested in emergency ascending/descending a climbing rope, where there is no other gear and time is of the essence. Basically, I wonder if anyone has had success with a swiss seat from a bight ...
Gabriel Land's user avatar
6 votes
2 answers
4k views

Why are twist-lock carabiners considered dangerous for some applications?

There are different types of locking carabiners. A screw-gate carabiner requires multiple rotations of the screw in order to lock it. A twist-lock carabiner locks automatically whenever you close it. ...
Mehmet Karatay's user avatar
1 vote
1 answer
317 views

What is causing climbing shoe toe blowouts?

I recently had two pairs of climbing shoes die in a very similar fashion: the right toe blows out, leaving a flapping piece of rubber near the bottom tip of the shoe (see photos). This is very ...
tittaenälg's user avatar
0 votes
1 answer
336 views

Why are there so few face climbs above V12 on boulders?

It seems like all of the futuristic projects (V15+) we see are on overhung, cave-like features. This makes sense because being overhung automatically adds difficulty since you are working against ...
ijustlovemath's user avatar
3 votes
4 answers
3k views

Has any late-starting climber (36 years old) ever accomplished anything noteworthy?

I started climbing a year ago, at the age of 36. I really enjoy the sport and try to climb a lot. However, lately I've been thinking if it is possible to achieve anything (worthy of mention) for ...
Alexander's user avatar
  • 1,770
5 votes
1 answer
651 views

Belaying/rappelling with a rope thicker than allowed by belay device

I've got an 11mm static rope. Can I use it safely for top-rope belay/rappel with a belay device that is designed for "9.5 - 10.5 mm rope"?.. I actually rappelled three times with no issues ...
Alexander's user avatar
  • 1,770
1 vote
1 answer
890 views

Influence of little finger length on climbing performance

Is there any scientific study in climbing which investigates the length of the little finger compared to the middle finger in terms of climbing performance on a professional level (grade > 5.12)? ...
cerv21's user avatar
  • 1,047
-1 votes
1 answer
165 views

is the shoe sole based on kirigami likely to change climb ratings and rules for climbing competition?

For the source, see this article in the Smithsonian. A material based on a technique, called kirigami (a relative of the folding technique, origami) of cutting a flexible three dimensional pattern ...
ab2's user avatar
  • 23.9k
7 votes
1 answer
482 views

Climbing indoors: emergency situations

We should always do the partner check and tie a stopper knot, but... Lead climbing: If you are half-way up a climbing wall and see that your knot, which attaches you to the harness is loose/untied/...
cerv21's user avatar
  • 1,047
-2 votes
1 answer
433 views

Yosemite bowline - stopper knot?

I would like to switch to the Yosemite bowline knot. I don't want to compare the pros and cons of figure 8, double bowline and Yosemite bowline. I am interested in single-pitch climbs and gained some ...
cerv21's user avatar
  • 1,047
3 votes
3 answers
3k views

How to attach climbing holds / rungs to a tree trunk without harming the tree

I've got a tall tree in the backyard that we use to practice belaying / abseiling (rappelling). However, the lowest part of the trunk does not have any branches until up to 20' / 6m, so we use a lean-...
Alexander's user avatar
  • 1,770
6 votes
1 answer
288 views

Can a full body harness help reduce the chances of suspension trauma?

Those who are well-versed with rock-climbing (and other variants of climbing) are aware of the dangers posed by Suspension Trauma. Here at The Great Outdoors there had been a healthy discussion on ...
WedaPashi's user avatar
  • 31.7k
1 vote
3 answers
1k views

Munter hitch + prusik for rope solo lead climbing

Disclaimer This is a question regarding a theoretical technique, and not a tutorial, advice or recommendation. This technique has not been tested, and might potentially be completely unsafe. Climbing ...
LeonTheProfessional's user avatar
9 votes
2 answers
419 views

How do UIAA falls add up over time?/When to replace a rope

How do lead climbing falls add up over time based on their fall ratings? For example, the rope I have is rated to 8 UIAA falls. A UIAA fall is a fall factor of 1.77. Lets say over the course of a ...
Parker owen's user avatar
9 votes
2 answers
3k views

Can you Rappel with an Old Climbing Rope?

I received an old climbing rope, whose history is unknown. I know this rope should not be used for any situations where a fall is possible since it may have already sustained one. However, can it be ...
Jesse Yishai's user avatar
5 votes
1 answer
638 views

What kind of Rope for a Bosun's Chair

I'm going to make a bosun's chair to lift me 40 ft in the air to a tree platform (with at least a 6' clearance, so closer to 50'). Of course I would like the right type of rope with the right tensile ...
Jesse Yishai's user avatar
4 votes
1 answer
249 views

Question about climbing in "A Line Across the Sky"

I've been watching "A Line Across the Sky" which is a short-ish movie about Tommy Caldwell and Alex Honnold doing the Fitz Roy traverse. During which Tommy Caldwell mentions Alex doing a 1000 and ...
Morten Nissov's user avatar
4 votes
2 answers
932 views

Are "fall-arrester" devices used in climbing/mountaineering?

I came across an interesting looking device on the Petzl website. As per the description, the mobile fall arresters follow the user automatically as he moves, whether on an inclined or vertical ...
ahron's user avatar
  • 1,841
5 votes
1 answer
623 views

Why are full body harnesses uncommon in mountaineering?

In principle, it is known that full body harnesses are useful for situations where the center of gravity is higher - e.g. for children, or for Alpine situations involving carrying heavy loads. A full ...
ahron's user avatar
  • 1,841
3 votes
4 answers
836 views

What knot was used by my mountain guide to tie me in to the middle of a rope?

Twice now I have been out winter hiking with a guide and another person and I'm trying to work out what knot they used to tie the middle person onto the rope. Let's say the guide is in front, my ...
tonicsoft's user avatar
  • 133
3 votes
10 answers
1k views

What’s the main appeal for climbing outdoors?

I am a long time gym climber, and I climbed outdoors for a couple of times. I fail to understand why climbing outdoors is more appealing than climbing indoors. If the goal is to climb harder, while ...
user3667089's user avatar

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