Whoopie Continuous Loop?

Why not build whoopie slings as continuous loops? At least, as an option or alternative to the "straight line" model?

Seems it would be stronger, because as a loop, the whoopie would never get down to a single length of line anywhere, not even for a couple of inches. It would always be "doubled." And it would be more adjustable (could be made even shorter and perhaps even longer), since there would be no locked brummel taking up room. At no greater weight.

Alternative number two: why not build a single continuous whoopie sling, from one end of the hammock, to one tree, across to the other tree (doubling as the tarp line), and back down to the other end of the hammock. Again, seems it would take no more line and might even save line and weight and would need no separate tarp line.

Hmmmm. Can anyone tell I got out of my box today? :lol:

Rain Man

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I believe what you are after is a loopie sling...

http://www.sherrilltree.com/Professi...l-Loopie-Sling

The downside to a loopie is it has the same charecteristics as a UCR. Only 1 side of the bury is loaded and the entire set-up is prone to letting loose if the wind hits it wrong.

I do use one of these on my hammock stand on one end to accomodate different hammocks.

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Originally Posted by opie

The downside to a loopie is it has the same charecteristics as a UCR. Only 1 side of the bury is loaded and the entire set-up is prone to letting loose if the wind hits it wrong.

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I'm going to hat to put my cogitation hat on. If it's a loop, wouldn't both sides be loaded? And it's a whoopie that only has on side loaded?

Or, are you speaking about the "outside" or "grabber" line rather than the buried line? That might make some sense to me.

Or are we talking apples and oranges somehow?

Thanks for the insight and link!

P.S. That leaves my one-piece, continuous non-loop idea still afloat though, right?

Rain Man

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IFWIW, I've been using these 'loopie' slings for well over a year on my DD travel. I actually prefer them to whoopies now having used both on it. Used in the DD travel, I think they make opening the channel back out easier for bivi use, you can't lose the splice inside itself, its easier to make and easier to use.
I used an 11" splice to make sure it held and never had a slip. I don't rate them for pure hammock use though, I think the normal whoopie is best.

Quote:

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Originally Posted by Rain Man

Why not build whoopie slings as continuous loops? At least, as an option or alternative to the "straight line" model?

Seems it would be stronger, because as a loop, the whoopie would never get down to a single length of line anywhere, not even for a couple of inches. It would always be "doubled."

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It depends on how the loop is connected on both ends. If the loop is placed around a marlin-spike-hitch, at the point were it is going around, it is single layer. That becomes the weak spot, so the double line has no bearing. Even if you larkshead it on to the other end, there is still only a single line at the back of the knot.

Quote:

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Originally Posted by Rain Man

I'm going to hat to put my cogitation hat on. If it's a loop, wouldn't both sides be loaded? And it's a whoopie that only has on side loaded?

Or, are you speaking about the "outside" or "grabber" line rather than the buried line? That might make some sense to me.

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That's correct, it is the load on both ends of the sheathing that causes it to constrict on the inner line. Without the tension on both ends, it can easily slip.

Quote:

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Originally Posted by Rain Man

I'm going to hat to put my cogitation hat on. If it's a loop, wouldn't both sides be loaded? And it's a whoopie that only has on side loaded?

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A whoopie has both sides of the constrictor loaded, one side is the rope attached to the fixed eye, the other side makes up one leg of the adjutable eye.

The way the loopie is constructed, youll see tha backspliced tail... In order for both sides of the constrictor to be loaded, this tail needs to be attached to something. You can solve the problem by using a small prusik attached to the tail somehow to tension it after getting length set. But under normal operations, only one side is loaded.

Quote:

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Originally Posted by Rain Man

Or, are you speaking about the "outside" or "grabber" line rather than the buried line? That might make some sense to me.

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Makes no difference whether talking about a whoopie or a loopie... If the outer line isnt loaded, no constriction.

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Originally Posted by Rain Man

P.S. That leaves my one-piece, continuous non-loop idea still afloat though, right?

Rain Man

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You lost me on this one. But dont take it to heart... Im easily lost.

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Originally Posted by opie

You lost me on this one. But dont take it to heart... Im easily lost.

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I'm meaning one extra long whoopie, instead of two short ones. The long one goes from one end of the hammock to the first tree, then across to the second tree (acts as ridgeline for rainfly?), then to other end of hammock. Or, maybe it'd have a whoopie on both ends.

Can you tell I was climbing all the way out of my box?

:)

Quote:

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Originally Posted by Rain Man

I'm meaning one extra long whoopie, instead of two short ones. The long one goes from one end of the hammock to the first tree, then across to the second tree (acts as ridgeline for rainfly?), then to other end of hammock. Or, maybe it'd have a whoopie on both ends.

Can you tell I was climbing all the way out of my box?

:)

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Would the "tarp ridgeline" go limp with no weight in the hammock. Would sag in ridgeline + tarp in porch mode + rain = water pocket? Would you care? :confused:

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Originally Posted by gmcttr

Would the "tarp ridgeline" go limp with no weight in the hammock. Would sag in ridgeline + tarp in porch mode + rain = water pocket? Would you care? :confused:

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Good question!

I just KNEW I'd be more comfortable if I stayed in my box. :lol:

Sincerely, you all are helping me think through the ramifications. Thanks!

Rain Man

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Give it a try for us. The worst case is it doesn't work and you have to cut a section out of the center and end up with 2 whoopie slings and a length of amsteel.

As always, a video would be appreciated.

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Originally Posted by gmcttr

As always, a video would be appreciated.

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Ahhhh ... a challenge! Me and my big mouth! Of course, I've got two problems... ordering more Amsteel and figuring out how to post videos.

I wouldn't advise anyone holding their breath just yet. :lol:

Rain Man

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i know this thread is over a year old but i'd like to clarify the loopie case, im a professionnal tree climber and i work with this kind of splice. I can tell you loopies are safe enough for hammocks, heres a video on how to use em properly: http://www.youtube.com/watch?v=joOU8MvktL0
and a thread on an arborist forum regarding strenght loss and break tests: http://www.treebuzz.com/forum/showfl...0&fpart=1&vc=1

Quote:

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Originally Posted by gmcttr

Would the "tarp ridgeline" go limp with no weight in the hammock. Would sag in ridgeline + tarp in porch mode + rain = water pocket? Would you care? :confused:

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I dont think it would "if!!" you used prusiks to tighten the tarp against the lines. It wouldnt matter if you had load on the hammock or not. This setup is similar to putting your tarp and hammock on the same tree straps. I understand exactly what the idea is. I haven't played with it though. I dont have any extra amsteel on hand.

The down side to this is if you dont use tree straps around here the rangers will chew you a new one. I understand the reasoning behind this though.

This is my suggestion, take it with a grain of salt. Think of it as a tarp ridge line to begin with. Then add you hammock to it using decender rings or an attachment of your choice. As stated above you tighten the tarp the way Shug shows in many of his vids using a prusik knot and slidding them to tension the tarp. The problem with this idea is being able to attach the hammock. I would never trust a prusik to hold under my weight. So any ideas on how to attach the hammock?

I hope I'm grasping what he is shooting for.