Hello, I'm going on a few backpacking trips in the mountains next year. I am looking at possibly taking some rappelling rope with me. I'd like to carry at least 80-100 feet of it. Not planning on doing any climbing or anything like that. I just wanted to have the rope with me for an emergency rappel if I had too. I thought maybe 8mm would be big enough If I was using my body as the friction device and setting up a rappel with just the rope alone. My question is would 8mm rope suffice to that task just fine? I want to carry that size rope cause it's smaller and easier to have on my rucksack. My last question is could I do a Military style rappel with a carabiner and a "tied" military rappel seat if I absolutely had too safely?
Thanks for the help in advance! Just looking for some guidance here. Don't really plan on taking risks rappelling anything further than 30-50 feet as needed if I absolutely had no choice for what ever reason. I have been reading up and plan on practicing some light rappels on inclines instead of vertical cliffs. I heard somewhere that the standard repel width for rope was 9mm for vertical rappels but I didn't know if that applied to the rope only style of rappelling I would do in an emergency or with the military style possibly.
Appreciate any guidance...