The figure eight overhand double fishersman s are just three methods.
Joining two ropes for abseil.
In this test on rock and ice all three knots tested were weaker with different diameter ropes.
There s many reasons why you d want to join two ropes together but perhaps the most obvious one is to allow for a full rope length retrievable abseil.
This like the belay chapter is a long one due the many different approaches that can be adopted.
Which knots do i personally use.
Times when you might need to abseil past a knot.
You can also abseil in the same way using two ropes.
The problem is we all know what happens if you get this wrong and abseiling is terrifying enough and if you aren.
So keeping it simple makes sense.
When descending a single strand fixed rope where a knot has been tied to isolate a damaged section passing a knot joining two ropes during an emergency retreat as always first try to utilize the terrain to make passing the knot easier.
It is often said that a double fisherman s knot is the best for joining two ropes of different diameters.
A surprisingly high number of climbers die abseiling.
How many times have you had arguments with your mate when it comes to abseil knots.
I know of two climbers one british and one french who actually came to blows at the top of an ice climb once neither trusting the others tried and trusted techniques of joining two ropes.
Although a series of alternative knots are discussed the edk is presented as the normal knot for joining abseil ropes.