|
majid_sabet
Feb 25, 2008, 10:25 PM
Post #1 of 93
(8160 views)
Shortcut
Registered: Dec 13, 2002
Posts: 8390
|
What do you know about this ?
[URL=http://imageshack.us]
|
|
|
|
|
shockabuku
Feb 25, 2008, 10:26 PM
Post #2 of 93
(8153 views)
Shortcut
Registered: May 20, 2006
Posts: 4868
|
1000 words.
|
|
|
|
|
onceahardman
Feb 25, 2008, 10:37 PM
Post #3 of 93
(8125 views)
Shortcut
Registered: Aug 3, 2007
Posts: 2493
|
Four bolts. Too close together. I didn't measure, but I seem to recall that bolts should not be placed within 10 bolt diameters of each other. Looks pretty close.
Also, the bolts are placed next to a bomber nut crack.
I assume you are asking about the black *extender thingys*...I don't know anything about that. Do you?
|
|
|
|
|
Valarc
Feb 25, 2008, 10:40 PM
Post #4 of 93
(8108 views)
Shortcut
Registered: Apr 20, 2007
Posts: 1473
|
This oughtta be good...
My guess: boy scout troupe practicing their knots :-D
|
|
|
|
|
onceahardman
Feb 25, 2008, 10:48 PM
Post #6 of 93
(8080 views)
Shortcut
Registered: Aug 3, 2007
Posts: 2493
|
In reply to: If you look closely, the two main ropes are each attached to the power points by a cord tied around the rope in a prussik, looped thru the biner, then prussik'd onto the rope again.
OK. Thanks. well it looks like if the prussiks failed, the load would be taken up by ? Can you tell what the coil of black rope is attached to? It doesn't look like its into all of the bolts
|
|
|
|
|
zeke_sf
Feb 25, 2008, 11:04 PM
Post #7 of 93
(8042 views)
Shortcut
Registered: Apr 28, 2006
Posts: 18730
|
It's really not hard, taking the tags out of the photos. I'm not even going to try and underhend what Majid is trying to ask us....
|
|
|
|
|
photoguy190
Feb 25, 2008, 11:11 PM
Post #8 of 93
(8018 views)
Shortcut
Registered: Dec 30, 2006
Posts: 191
|
I would say some sorta zip line or high line, non tensioning side of course. I'm leaning toward a zip line cause there are no tag lines or haul lines.
|
|
|
|
|
dudemanbu
Feb 25, 2008, 11:28 PM
Post #10 of 93
(7968 views)
Shortcut
Registered: Jun 3, 2005
Posts: 941
|
Bomber.
|
|
|
|
|
majid_sabet
Feb 25, 2008, 11:34 PM
Post #11 of 93
(7946 views)
Shortcut
Registered: Dec 13, 2002
Posts: 8390
|
onceahardman wrote: In reply to: If you look closely, the two main ropes are each attached to the power points by a cord tied around the rope in a prussik, looped thru the biner, then prussik'd onto the rope again. OK. Thanks. well it looks like if the prussiks failed, the load would be taken up by ? Can you tell what the coil of black rope is attached to? It doesn't look like its into all of the bolts
Let me help you boys out before you confuse yourself on this rig
This image came from climbing magazine on-line and it is for a highline. The two prussic are there as a tension overload indicators. At 8 kn each prussic will slip. There are four prussic there, two on each rope.
At 16 kn of tension per rope, prussic starts to slip which tell the guys on the other side that they are overloading the MA system and they should stop putting tension on the main line.
If you do not put the prussic there,you do not know how much you are pulling and when to stop on your MA.
(This post was edited by majid_sabet on Feb 25, 2008, 11:36 PM)
|
|
|
|
|
cintune
Feb 25, 2008, 11:43 PM
Post #12 of 93
(7924 views)
Shortcut
Registered: Nov 10, 2004
Posts: 1293
|
So then there's still slack in the lines behind the prussiks that have "started" to slip? What good does that do? As soon as someone weights it they slip some more? Then what?
|
|
|
|
|
majid_sabet
Feb 26, 2008, 12:08 AM
Post #13 of 93
(7869 views)
Shortcut
Registered: Dec 13, 2002
Posts: 8390
|
cintune wrote: So then there's still slack in the lines behind the prussiks that have "started" to slip? What good does that do? As soon as someone weights it they slip some more? Then what?
Since you do not know how far to tension the main lines, you start with a few feet of slack and once you start loading the mainline, the pruisk may slip but unevenly among the both lines. At some point, the tension on both lines becomes even and that is where you leave everything.
|
|
|
|
|
cintune
Feb 26, 2008, 12:15 AM
Post #14 of 93
(7852 views)
Shortcut
Registered: Nov 10, 2004
Posts: 1293
|
How did they determine that the slippage occurred at 8Kn? Could you maybe link to the actual article now?
|
|
|
|
|
binrat
Feb 26, 2008, 12:18 AM
Post #15 of 93
(7843 views)
Shortcut
Registered: Jul 27, 2006
Posts: 1155
|
MS:
Then that is not a kootenay highline then now is it.
binrat
|
|
|
|
|
majid_sabet
Feb 26, 2008, 1:03 AM
Post #16 of 93
(7794 views)
Shortcut
Registered: Dec 13, 2002
Posts: 8390
|
Check the climbing magazine web, the image came from there.It says tyrolean .
|
|
|
|
|
cintune
Feb 26, 2008, 1:32 AM
Post #18 of 93
(7741 views)
Shortcut
Registered: Nov 10, 2004
Posts: 1293
|
Looks like they've got those prussiks rigged on both sides.
Also appears to be a two-line zip/tyrolean to get across the Gunnison down in the canyon, not a highline.
|
|
|
|
|
Carnage
Feb 26, 2008, 1:51 AM
Post #19 of 93
(7708 views)
Shortcut
Registered: Mar 27, 2007
Posts: 923
|
i feel like majid would have made a post to the extent of "you noobs are going to get yourselves killed" if he didnt know this had been designed by professionals.
|
|
|
|
|
trenchdigger
Feb 26, 2008, 3:11 AM
Post #20 of 93
(7627 views)
Shortcut
Registered: Mar 9, 2003
Posts: 1447
|
majid_sabet wrote: cintune wrote: So then there's still slack in the lines behind the prussiks that have "started" to slip? What good does that do? As soon as someone weights it they slip some more? Then what? Since you do not know how far to tension the main lines, you start with a few feet of slack and once you start loading the mainline, the pruisk may slip but unevenly among the both lines. At some point, the tension on both lines becomes even and that is where you leave everything.
Why do you think this belongs in a rock climbing forum?
And if you're pre-tensioning a highline system until your double prusiks begin to slip, you're doing something seriously wrong.
Why don't you take your SAR BS to the MRA forum? Or maybe Firehouse.com? Save RC.com for climbing related BS.
|
|
|
|
|
timd
Feb 26, 2008, 3:57 AM
Post #21 of 93
(7567 views)
Shortcut
Registered: Dec 21, 2003
Posts: 862
|
Majid, diagrams please.
|
|
|
|
|
deltav
Feb 26, 2008, 4:07 AM
Post #22 of 93
(7555 views)
Shortcut
Registered: Sep 29, 2005
Posts: 597
|
This is a similar set up to a high line. The difference being that there is usually a MA of some sort to tension the system. The prussiks are there so if the system is over tensioned or overloaded then it will self adjust instead of completely failing. Prussiks slip at 7kn btw.
|
|
|
|
|
majid_sabet
Feb 26, 2008, 4:55 AM
Post #23 of 93
(7503 views)
Shortcut
Registered: Dec 13, 2002
Posts: 8390
|
(This post was edited by majid_sabet on Feb 26, 2008, 9:12 AM)
|
|
|
|
|
|
|
|
tradrenn
Feb 26, 2008, 5:36 AM
Post #25 of 93
(7453 views)
Shortcut
Registered: Jan 16, 2005
Posts: 2990
|
majid_sabet wrote: trenchdigger wrote: majid_sabet wrote: cintune wrote: So then there's still slack in the lines behind the prussiks that have "started" to slip? What good does that do? As soon as someone weights it they slip some more? Then what? Since you do not know how far to tension the main lines, you start with a few feet of slack and once you start loading the mainline, the pruisk may slip but unevenly among the both lines. At some point, the tension on both lines becomes even and that is where you leave everything. Why do you think this belongs in a rock climbing forum? And if you're pre-tensioning a highline system until your double prusiks begin to slip, you're doing something seriously wrong. Why don't you take your SAR BS to the MRA forum? Or maybe Firehouse.com? Save RC.com for climbing related BS. So what are you, the VP of RC or something ? Shut up and take notes you wanabee n00ber
He is way more useful then you are with your BS.
|
|
|
|
|
|
|
|
|
1
