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Chockstone Forum - General Discussion

General Climbing Discussion

Topic Date User
Double, twin or single rope ...? 22-May-2004 At 8:54:46 AM M
Message
Kieran,

If I came across as condecending I am very sorry. I was just trying to reduce the concept into very simple terms. I do not know how much knowledge of physics anyone reading these posts has but I suspect that there is a wide range. As a scientist (not a physicist) I often have to explain scientific concepts to the general public and students and it is often useful to reduce ideas to a very simple level. I am always aware of the risk of being condecending and feel sorry if anyone feels condecended to.

As a climber you are far more experienced than myself and I do not wish to comment on the technicalities of lead climbing as there are many on this forum, including yourself who are far more qualified to do so.

My main interest was discuss the forces on protection, climber and belayer when two ropes are compared to one. I firmly believe that two ropes will result in a larger force on the anchors belayer and climber than a single rope of the same diameter. I think that others who have posted above and seem to have engineering experience agree on this point.

In terms of quoting scientific journals this is probably quite difficult. I suspect data such as this (refering specifically to climbing ropes) is more likely to be in honours or PhD thesis than a journal. If it is in a journal, it is likely to be in a journal which I have only limited access to without significant effort.
If you are genuinely interested in this please let me know and I will endevour to find some specific scientific evidence. Alternatively I could write to a rope manufacturer and enquire as to weather they have any data they could supply.

Either way please accept my apologies.

Mathew

There are 41 replies to this topic.

 

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