New climbing line

[dtreez]

Looking for a climbing rope with less elasticity than Yale's 11.7 Ivy, but still acceptable for double line.

I've heard good things about the smaller diameter HTP, but I've been told its exclusively an SRT line.

Any suggestions?

 

[SeanRuel]

Yale 11.7 is virtually static at normal climbing loads

 

[islandarb]

Ivy lines are 1.4% elongation @ 10%MBS. HTP is 1.2%........ not sure if you would climb steel cable.... I was with you till you mentioned ivy...ivy lines are badass SRT lines that kick ass double. Go buy some more .....thank me later. HTP will fly SRT.....fuck doubling on it.

 

[JeffGu]

...still acceptable for double line.

DrenaLINE 11.8mm is a 32-strand kernmantle that has just enough elongation to be good for DdRT and is still static enough for SRT. About 2.4% elongation @300 lbs. if I remember correctly. This rope is the perfect match for the ZigZag.

 

[southsoundtree]

Why is there a need for more elasticity in DdRT? In the event you fall?

 

[JeffGu]

Each leg is only carrying half your weight, so even though there's usually more rope in the system, it's not enough to give any stretch at all to the rope. With really static lines, it's rather unpleasant.

 

[dtreez]

I've been told that lines like HTP won't set properly if you want to use a Blake's hitch. I rarely do, Im on the hitch climber system most of the time. But I am curious why a lot of the more static lines in the Sherrill catalogue aren't recommended for DRT.

 

[climbstihl]

@JeffGu Wouldn't the amount of rope in a MRS system give two times the amount of rope to stretch, even with half the weight? So you'd come out at the same stretch as SRS?

 

[Tony]

Why is there a need for more elasticity in DdRT? In the event you fall?

The use of low elongation climbing lines in work positions systems is such a misunderstood area. If you are using any work position system ,SRS or MRS, correctly, as in minimal to no slack, pretty much any arborist climbing line is fine from an elongation standpoint.

Factors like “knotability”, “spliceability” and hand are the deciding factors.

Do some ropes feel more “stretchy?” Yes.

A ropes “stretch” is derived from two sets of numbers. First is the one everybody references, the amount or percentage of stretch. Do not forget this is expressed in % at a certain length. The length is important when comparing lines. The second is when will the rope stretch or at what % of load. Again when comparing ropes and choosing ropes based on elongation this number must be considered.

Also do not forget, your choice of tie in point has much to do with the amount of “stretch” in your system.

Tony

 

[DSMc]

No, Jeff was correct in that in an MRS each leg is only holding half the weight and is measured from the tip.

 

[dtreez]

I've been using 11mm HTP static addiction for both SRT/SRS and DdRT/MRS recreational climbing. It's listed at 1.7% at 300#. To me the HTP feels bounceir than 11mm Blaze in SRT. DdRT will work with 11mm HTP static addiction but it's not my favorite and it seems to eat hitch cords quickly due to the extra tough cover. Going to be hard to get anything less bouncy than an Ivy/Bluemoon/Blaze variant that's good for both SRT and DdRT that still has a good hand.

When you climb DRT/MRS on HTP are you using a hitch climber system?

 

[burtonbc1400]

i love samson voyager 11.8 mm. it is super strong. it knots better than poison ivy which i used before.
i use it for srt and ddrt/mrt with a hitch hiker pulley.
srt set up is haas/isc stryder / rope wrench