The Masters

Jeff Ward - IFMGA/AMGA Guide

Jeff Ward is an IFMGA-licensed and AMGA-certified Alpine, Ski and Rock Guide. He grew up in the Northwest and is co-owner of North Cascades Mountain Guides ( based in Mazama. Ward is a lead instructor for the American Mountain Guides Association and serves on their technical committee.

Martin Volken - IFMGA Guide

Martin Volken is the founder and owner of Pro Guiding Service and Pro Ski and Mountain Service in North Bend, WA. He is a certified IFMGA Swiss Mountain Guide and guides over 120 days per year in North America and Europe as a ski, rock and alpine guide. Volken has pioneered several steep ski descents, ski traverses, alpine and rock routes in the Washington Cascades. He has been a member of the AMGA examiner team since 2000 and has authored and co-authored three books on ski touring and ski mountaineering.

Got a question about climbing? Submit your question in the Ask the Master forum and either Jeff Ward or Martin Volken will supply the answer.

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Rapping off a V-Thread with different diameter ropes

18-Jan-2017 09:15 PM


Posts: 1

Hey Martin.

Today I read this online 

"2 different thickness ropes go through the belay device at different speeds and there will be sliding movement on the lighter tag line which could melt through the v thread cord.''

Is this a legitimate concern while rapping off a v-thread? V-threads already are scary enough while ice climbing and this complicates it more.


28-Jan-2017 01:06 PM

Jeff Ward

Jeff Ward
Posts: 46


Yes, that is a valid concern when rappelling off a v-thread without metal (rap ring, quick link or carabiner) at the connection point.  It's quite easy to burn through a single v-thread (or even a double v-thread for that matter) if the ropes start to shift.