DRT

[oceans]

Probably technically referred to as DSRS now, eh?

 

[Richard Mumford-yoyoman]

Can you expound on this yoyo

One of the points of having two SRT lines is redundancy, you can't have redundancy with a swivel in that kind of system as it ALL must go thru the swivel. It is like the "jesus" bolt on a helicopter, inspite of all the redundancy and backup built into the helicopter, if that ONE bolt breaks...you see Jesus.

 

[treebing]

my system hasn't really changed much. two bridges, two swivels. the rock o swivels seem to be the best I have found.

 

[Treetopflyer]

Probably technically referred to as DSRS now, eh?

Automatic systematic lol

One of the points of having two SRT lines is redundancy, you can't have redundancy with a swivel in that kind of system as it ALL must go thru the swivel. It is like the "jesus" bolt on a helicopter, inspite of all the redundancy and backup built into the helicopter, if that ONE bolt breaks...you see Jesus.

I see what you mean.. there's points in time I may be relying on just my swivel on one line as I don't need to lanyard in or another line to complete many objectives, as I'm still tied in with one line always just like the Jesus bolt . I trust it all at different times stand alone..I inspect and expect that hardware to withstand the force I'll induce on it as a stand alone or in conjunction as part of a system. Everything must be strong enough whether it be a ring swivel caribiner ROPE bridge or what ever else I choose to trust my life to.. I don't think the completeness of the dual ROPE system is to be completely redundant 100 percent of the time albeit possible with diligence. Just a hell of a lot safer when it counts.. Chainsawing while tied in twice and flatline climbing come to mind.

 

[Treetopflyer]

my system hasn't really changed much. two bridges, two swivels. the rock o swivels seem to be the best I have found.

I'm on rock nanos on each bridge. Keeps the biner in its place perfect . Minimize accidental side loading

 

[treebing]

@TimBr. this thread kind of sums up why I need two bridges on my harness.

 

[moss]

One of the points of having two SRT lines is redundancy, you can't have redundancy with a swivel in that kind of system as it ALL must go thru the swivel. It is like the "jesus" bolt on a helicopter, inspite of all the redundancy and backup built into the helicopter, if that ONE bolt breaks...you see Jesus.

I know this is reviving an older post but missing something here. I guess it’s a question whether a climbers is actually using DSRS as redundancy or more for efficiency and strong work positioning. I’m in the later camp, DSRS when it makes sense, SRS when it is the strongest approach for the situation.

To your point “all must go thru the swivel”, I must be misunderstanding, my two harness bridges are used as independent life support connections, are you referring to double bridges being used as a single connector to the climbing line? Thx Richard!
-AJ

 

[moss]

I know this is reviving an older post but missing something here. I guess it’s a question whether a climbers is actually using DSRS as redundancy or more for efficiency and strong work positioning. I’m in the later camp, DSRS when it makes sense, SRS when it is the strongest approach for the situation.

To your point “all must go thru the swivel”, I must be misunderstanding, my two harness bridges are used as independent life support connections, are you referring to double bridges being used as a single connector to the climbing line? Thx Richard!
-AJ

To add something else, the Captain Hook changed the game, it’s like carrying an instant DSRS plug-in in the tree. Still, full DSRS systems are the bomb for wide-crowned trees.
-AJ

 

[Stephen Moore]

You probably were safer, technically.....but thats not to say you were at much risk climbing the the 5000 trees you did previous, with one line. Theres no reason why you should fall off that limb and take a swing, because over time you have developed the skills and instinct not to. Two lines can help in certain situations, but is over thinking for most trees. Its like dumbing down the art of climbing.

SRT is simple fast and clean. No fuss, only one rope to clean up. You can even set up for moving MA albeit a bit slow.

 

[Stephen Moore]

If someone can climb with two ropes and be productive, what the hell does it matter if it is different than the last five thousand trees they climbed. How is it dumbing down the "art of climbing" to experiment with a new technique? Reg, are you simply worried about the idea of it becoming mandatory to climb DRT? Who cares if Bing uses two ropes, as long as he keeps making ground breaking gizmos while he does so.

Honestly, I personally think safety IS the responsibility of the individual. If you feel safer hauling twice the amount of rope into the tree- more power too ya! Myself, I’ve always had great confidence in my gear mostly because if I ever question something, it’s gone. My gear placement- same thing, bomber or nothing. And every cut I make, if I ain’t 100 percent sure of the outcome, I don’t make a cut.
I am not the best in the world, never will be. As long as my A game is being played every time I leave the ground, I can stay doing this well into my Depends years.

 

[Richard Mumford-yoyoman]

To your point “all must go thru the swivel”, I must be misunderstanding, my two harness bridges are used as independent life support connections, are you referring to double bridges being used as a single connector to the climbing line? Thx Richard!
-AJ

Just saying, in order to rotate without winding things up, you must have a single point to pivot, that being the swivel.

 

[moss]

Just saying, in order to rotate without winding things up, you must have a single point to pivot, that being the swivel.

Or lanyard in, disconnect one bridge, swivel on the other, reconnect to the second bridge, or some variation of that. All in a day’s climb.
-AJ

 

[Tuebor]

I keep meaning to try DRT one of these days. Meanwhile, any opinion on using this lowerable MRS false floating crotch as a floating anchor point for DRT? Thread a climbing line through the eyes, tie a midline blocking knot between the rings and maybe capture one leg with a biner. Haul it up to the desired union and base tie?

Climbing Lowering Anchor with Immediate Rescue

 

[rico]

I keep meaning to try DRT one of these days. Meanwhile, any opinion on using this lowerable MRS false floating crotch as a floating anchor point for DRT? Thread a climbing line through the eyes, tie a midline blocking knot between the rings and maybe capture one leg with a biner. Haul it up to the desired union and base tie?

Climbing Lowering Anchor with Immediate Rescue

View attachment 63411

I frequently use a similar setup when going DdRT and it works wonderfully in tall conifers. Set a line it the tree then put a pulley on one end, and in that pulley you put the bight of your climbing line. Simply pull the pulley to your desired height and set a basal anchor with your floating crotch line, while keeping both ends of you climbing line on the ground. Set up you preferred Ddrt setup and haul ass. When done you lower the entire setup.

 

[Tuebor]

I frequently use a similar setup when going DdRT and it works wonderfully in tall conifers. Set a line it the tree then put a pulley on one end, and in that pulley you put the bight of your climbing line. Simply pull the pulley to your desired height and set a basal anchor with your floating crotch line, while keeping both ends of you climbing line on the ground. Set up you preferred Ddrt setup and haul ass. When done you lower the entire setup.

Yeah, for sure. But I'm talking Dual SRT. Using two legs of one rope for two SRT lines and using this setup as a floating TIP.

 

[theatertech87]

Yeah, for sure. But I'm talking Dual SRT. Using two legs of one rope for two SRT lines and using this setup as a floating TIP.

If you do that, a pair of alpine tied midline should be fine, one for each ring and you get 2 legs of rope to work off. Still only counts as one point of attachment though

 

[Tuebor]

If you do that, a pair of alpine tied midline should be fine, one for each ring and you get 2 legs of rope to work off. Still only counts as one point of attachment though

Wouldn't one knot work? Just want to make sure I'm thinking straight.

 

[theatertech87]

Wouldn't one knot work? Just want to make sure I'm thinking straight.

Probably, but then there's no redundancy, and it might not load the rings evenly. So both ropes would need to follow the same path through the tree instead of having one redirected. Only way to know would be to try it

 

[Tuebor]

I guess that's what I'm wondering: does it matter if they're not loaded equally? Put all you weight into the line on the left, and the left ring is knot-blocked at the left ring from the center knot. Switch to the right, and the right ring is knot-blocked by the same knot.

 

[Jehinten]

I guess that's what I'm wondering: does it matter if they're not loaded equally? Put all you weight into the line on the left, and the left ring is knot-blocked at the left ring from the center knot. Switch to the right, and the right ring is knot-blocked by the same knot.

I'm thinking that would work. Although possibly cleaner to tie your alpine in the middle and attach the loop of the knot to a delta link in the eye of your basal tie. I'd think that would retrieve easier than two large rings.