Been regularly climbing on the Petzl Spin ever since seeing Dan Holiday explain it on climbing arborist and it has encouraged some creative adaptations I'd like to share.
I equally love climbing SRT and DdRT. I can't decide between them, so use both. I can't be bothered to isolate my TIP so...
you can expand your options by using a very long lanyard, like 25'+ and with a prusik. gives you an always available mini ddrt system. you can daisy chain it compact unwinding from the middle. you can attach to the hip, lower d, bridge, whatever, mix it up depending on the situation. If you use...
I was unable to find that friction coefficient info for wood/steel/aluminum in either of your mentioned papers. Like Dan says, real world experience with natural crotching contradicts that.
Considering that harder/denser materials have lower friction coefficient numbers and surface texture is...
here's an elegant variation of the Draggin Tail but abandoning the bight and using a quick munter hitch in place of the prusik&pulley
https://www.instagram.com/tv/CeEjqMcpmwL/?utm_source=ig_web_copy_link
I used the previous gen, orange&black version. great harness, easily adjustable. big leg straps are comfortable. durable. accessory loops are placed conveniently and easy to reach. Only negative issue I had with it was some bruising initially on the front of my pelvis (asis) from the D rings...
climbed in them today. two big pine removals, solid 6 hours. gaffed out more than once but the bark was flaky and I was obviously getting used to them, but at some point I realized I had not been thinking about my spurs and just climbing. That's what we want in gear, that it just work so well...
just got a set of pole gaffs from the wesspur link above, and it came with 4 long and 4 short screws w/ blue locktight and leather/velcrow booties! Had to use the star key on a socket wrench to break the old screws loose and install the new ones, 10 minute job and they look really cool. Sorta...
I have ran it both with 12" and 14" bars both 1/4pitch and I like 12" better on this saw. Definitely port the exhaust, it will turn it into a screamer. The weight and balance are nice. Awesome climbing saw.
The beauty of TRT is control of the working end through a single interface. Having two independent systems is called DSRT and probably many other acronyms :) Having a single "system" simplifies things and far less clutter.
Point is still that there is no such "TRT" multiscender device on the...
hey Gordon, I am probably by far not alone in wanting to do TRT using the 11.7mm rope(s) I use daily in a variety of situations. There is no device out there that will do it, which why folks are stuffing 8mm lines as a sort of hack. Can you make that device ??
came across this document recently and made me think of this thread.
https://www.linkedin.com/pulse/knots-mechanics-genealogy-climbing-hitches-arborists-based-restrepo
if you scroll down to the knut h section, there is a picture and description saying it is specific to the hitch hiker...
I wonder if there is a way to effectively use the dogbone from the hitch hiker device with the sticht and force a bend in the rope, or maybe a clamping effect