Vortex is a great rope for tree work. It is quite static at our working loads but due to its construction it can also elongate when exposed to heavy loads. A nice built-in safety feature. No matter how you climb gripping your climbing line is a given. A rope like Vortex is just so nice on the hands.
11.5mm or larger static lines
- Thread starter CutHighnLetFly
- Start date
Vortex is a great rope for tree work. It is quite static at our working loads but due to its construction it can also elongate when exposed to heavy loads. A nice built-in safety feature. No matter how you climb gripping your climbing line is a given. A rope like Vortex is just so nice on the hands.
TylerHoffman
Participating member
I had 1/2 HTP till it got lost in transit from treestuff after I sent it in to get a sewn eye in it. It did not work well for me with the wrench because of how light I am. Depends on ur weight I guess, but that was with the wrench puting a bend in the rope. I'm curious to see how the 13mm HTP functions with the bone. Keep me posted!
chris_girard
Branched out member
- Location
- Gilmanton, N.H.
You guys who are playing around with static ropes in SRT tree work (other than with the Rope Runner or Bone) could be potentially playing with fire. Look at your SRT BMP’s again and see that you SHOULD NOT be climbing (or doing work) on a static rope (unless you are using a Fall Arrest backup system that will absorb the energy of an impact load, i.e. your body). Since no one uses these devices in tree work (maybe some do who are using a DSRT system), you had better make sure that you know your rope construction properties, especially its elongation factor.
The rope chosen must meet EN1891 Type A standards; sufficient energy absorption to withstand a Factor 1 fall, without the need for an energy absorber. Also be aware, that if you playing around with a DSRT system (e.g. – 2 Rope Wrenches on separate lines), even if the lines that you are using meet the correct standard, you have still reduced your energy absorption BY HALF in the event of a fall, if your lines are anchored at the same height. Rope Wrenches are not Fall Arrest backup devices. Neither is the Hitch Hiker. The Rope Runner and Bone show potential as Fall Arrest backup, but as of yet, are unproven (to my knowledge) in that area. This is really discussion for a whole other thread.
KNOW YOUR ROPE
Static rope is defined as rope that has an elongation of 6% or less at 10% of the minimum breaking strength (MBS). 1/2 “ Sterling HTP has an elongation factor of 2%. My God, talk about a potential back breaker! This line should not be used in SRT tree work without an energy absorber (even if it’s a cow’s tail). HTP is good for an ascending line, poor for a work positioning line. Also, it does not meet EN1891 Type A standards. I will say though that it’s a great line for SPRAT work.
Low stretch rope (aka semi-static rope) has an elongation of 6% -10% at 10% of the MBS. KMII and Vortex are good examples of ropes to use for SRT in tree work. Both also meet EN Standards.
With so many new ropes coming out (almost every day it seems), climbers have to especially careful to choose the correct one for their climbing/rope needs.
I’m not trying to discourage experimentation, just be safe and know your equipment.
The rope chosen must meet EN1891 Type A standards; sufficient energy absorption to withstand a Factor 1 fall, without the need for an energy absorber. Also be aware, that if you playing around with a DSRT system (e.g. – 2 Rope Wrenches on separate lines), even if the lines that you are using meet the correct standard, you have still reduced your energy absorption BY HALF in the event of a fall, if your lines are anchored at the same height. Rope Wrenches are not Fall Arrest backup devices. Neither is the Hitch Hiker. The Rope Runner and Bone show potential as Fall Arrest backup, but as of yet, are unproven (to my knowledge) in that area. This is really discussion for a whole other thread.
KNOW YOUR ROPE
Static rope is defined as rope that has an elongation of 6% or less at 10% of the minimum breaking strength (MBS). 1/2 “ Sterling HTP has an elongation factor of 2%. My God, talk about a potential back breaker! This line should not be used in SRT tree work without an energy absorber (even if it’s a cow’s tail). HTP is good for an ascending line, poor for a work positioning line. Also, it does not meet EN1891 Type A standards. I will say though that it’s a great line for SPRAT work.
Low stretch rope (aka semi-static rope) has an elongation of 6% -10% at 10% of the MBS. KMII and Vortex are good examples of ropes to use for SRT in tree work. Both also meet EN Standards.
With so many new ropes coming out (almost every day it seems), climbers have to especially careful to choose the correct one for their climbing/rope needs.
I’m not trying to discourage experimentation, just be safe and know your equipment.
chris_girard
Branched out member
- Location
- Gilmanton, N.H.
Again, DON'T use static HTP line on a Rope Wrench without some sort of energy absorbor. You are just asking for an injury. Even in the event of a 0.25 Fall Factor.
HTP may work for you with the Bone (though it may not, because you are light), because when you potentially fall into it, it should slip slightly, absorbing kinetic energy.
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