Climbing Tools: Ropes Part 1 - Fall factors

[skipiwithani]

Hi Mike, I hope you get sponsored by the Canadian tourist board, because that's some fantastic footage at the start.

[pitot1988]

What type of music is it at the intro?

[revisualize]

Where is part 2?

[mikebarter387]

@revisualize comeing to a theater near you soon.

[kraftmstr]

Interesting stuff. Where's part 2?

[SuperZizel]

im only 10 and for the last 5 years i wanted a climbing rope for cristmas and nothing elss. '/

[iambonker]

Gorgeous footage at the start of the clip. Man I want to get over there. Great info too, Thanks.

[MistrMayer]

I hope part 2 will coming soon !

[SuperZizel]

where dose mike live

[scandore15]

banff alberta, canada if I am correct

[SuperZizel]

can i have a rope

[sawbackwc]

Mike should be able to spare a few ropes now that he's retired.

[Djpatbass]

thank you

[goobey99]

Thank you for so many great videos.

[darkgift06]

ohhhh nice ELK!!!!!! & its a 6 pt :D... sorry now back to watching the rest of the video lol

[koepkeca]

Thanks for another great video!

[oblivionstyzx]

Doing some looking around the interwebs I found that rope stretch for Static rope is sub 5% or 10%... Dynamic seemed to be closer to the 30% range. This matches what I have heard before.

When calculating fall factor do you calculate the length of fall to when the rope starts catching or when the fall stops? Because the fall in your factor 2 example from 100ft up should end up being 230 ft with 30% stretch of the 100ft of rope, if you calculate to when the fall is stopped.

[mikebarter387]

I have static ropes at 0.5 to a max of 1.5 % stretch.

We also have start talking KN of force now to carry on this conversation. Remember I am just a poor dumb redneck and made all this shit up.

[oblivionstyzx]

Take a look at Sterling Rope's web site. I am looking at stretch in the range of 3% to 6% for static. 30% or more for dynamic.

I can't find stretch on BlueWater's site.

Edelweiss does seem to have much less stretch for the dynamic ropes (Sharp 10.5mm listed at 8% for 5 - 80kg). Though the rescue static is 2.9%

New England Ropes list the static for 2% - 5.4% for 300lbf - 1000lbf. For the dynamic they list 2 values Static (~5%) elongation and dynamic (29% mostly). This may explain the confusion

[pishmishy]

You don't take stretch into account for fall factors - otherwise the stretchier rope gives you bigger fall factors which isn't at all intuitive. Besides, it's then the combination of the fall factor, weight and stretch give you the force - fall factor is not a measurement of force!

[6kuku9]

Nice opening - really underlines the fact that there aren't any mountains in England :( - are you going to do anything about calculating force in kN, which I've never been able to get my head around?

[mikebarter387]

I was thinking about that. I may leave that till I get part two done. It really is a can of worms that I am not sure I want to open. Thinking about it though I guess it would be a good thing to add for those who like the theory part of the game. The scenery is all shot within 20 minutes of my house. I feel pretty lucky to be able to live here. What you don't see is the 9 months of winter that goes with it.

[6kuku9]

I'd still trade you for the view from my house ;-)

[MiguelAPeraltaJr]

Wohoo! Awesome vid. Cant wait for Parte Dos!

[irishguy80]

that is some beautiful country!!