So does anyone know the history of double ropes in the UK?
It's not a topic I've ever heard discussed. In the histories I've come across it seems a very rapid move from good old Viking hawser-laid Nylon singles to 9mm doubles.
So who's wizzo idea was it to start using 2 half ropes?
I did do an internet search which came up with a rather fabulous old alpine journal article on rope testing -
"
http://www.alpinejournal.org.uk/Contents/Contents_1973_files/AJ%201973%2062...
it didn't answer my question but does have some great bits of info for rope geeks out there, such as "A 14-stone climber falling from a
50-ft run out will have a factor of safety of under 2 if using a 1.5-inch diameter polypropylene rope" - And did you know knotted hawser-laid rope is stronger than knotted kermantle?