drt

[scotspine1]

its taken a long fight with some of the lads to get the drt message over at least 99% now are totally converted and feel a bit wierd when doing there homers on srt

 

Do you mean tying in twice from two separate anchor points when using a saw?

Edited April 21, 2009 by scotspine1

[sse arb]

kind of and yes that is also phrased as a double rope technique maybe mistackenly so.probably should be drct double rope crotching technique.

[scotspine1]

kind of and yes that is also phrased as a double rope technique maybe mistackenly so.probably should be drct double rope crotching technique.

 

Its a good idea to tie in twice when using a saw, not because you might cut through one of the ropes but because it allows for much better work positioning. Didnt realise this but its not DbRT as I said before its DdRT for Doubled Rope Techniques both static (footlocking) and dynamic (regular friction hitch/prussik system).

 

Its explained very well here by Mark Adams, one of the technical gurus at Treebuzz -

 

http://www.treebuzz.com/pdf/CC_Aug07.pdf

 

 

 

.

Edited April 21, 2009 by scotspine1

[Mark Bolam]

Thanks fellas. I'm not confused any more. At all. Honestly.

 

Where is JJG when you need him....

[LSD]

SRT, DRT?

where is JJG, AT's MVP?

Edited April 21, 2009 by LSD

[Marc]

 

Only use SRT for ascending into the canopy, rope over a branch tied off at base using a running bow, using Petzl's right and left hand ascenders to ascend the rope. Sometimes footlock a doubled rope using the ascenders joined together. Never heard of RADS - sounds very suspect, like rickets or something.

 

 

Rads is just basically another srt system, it uses an Elderid Eddy or Petzl ID, 1 handled ascender with footloop and a micro pulley, its probably the least effcient/slowest srt system, yet it has its advantages like being able to ascend and descend making it a safe system to work off, its particularly good for Pines, Limes and major dead wooding, just work your way up then come down no need to change over to a conventional system.

 

 

As for using 2 ropes, i don't see the advantage on a daily basis more of a hinderance really. Only usefull to me on rare occasions.

[LSD]

kind of and yes that is also phrased as a double rope technique maybe mistackenly so.probably should be drct double rope crotching technique.

 

When your talking about double crotching , is that on 1 line i.e. some sort of M/V redirect or climbing on 2 mainlines?

[DrewB]

Pretty sure this is the RADS system-there should be a footloop off the ascender though (no idea where it went of this). stand in the footloop and pull on rope to pull the cinch up.sit on the cinch and push the ascender up, stand in the footloop and pull.........

To descend, take the ascender off, clip it on side of harness and descend on the cinch. (cinch is not ideal for this technique)

[hesslemount]

DdRt = DoubleD Rope Technique aka Body Thrusting / Prusiking

DRT = Double Rope Technique aka single rope technique with a belay back up or any climbing system with a SEPERATE 2nd redundant rope as back up.

 

Tom Dunlap quoted it first with his usual necessary attention to detail in http://www.treebuzz.com/pdf/SingleRope.pdf

 

I used single rope technique (S.R.T.) climbing huge 70 metre + dipterocarps in Borneo. SRT is only necessary in climbs above 30M as it takes time to set up and is more equipment intensive. It's how Industrial (IRATA) lads climb. It is way more energy efficient on climbs above 30M but up to this limit you're as well off with a long extension ladder and Ddrt - body thrusting.