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15402RE: [Hammock Camping] Re: rope vs. tree hugger

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  • Carey Parks
    Aug 17, 2006
      Thanks Scott, for letting us know. While some may point out that it was not
      a scientific study, this piece of empirical data is the result of an actual
      trial and while it may not quantify the impact on the tree, and while you
      are not stating that the tree will suffer to any particulat degree, it does
      show that in this kind of use, tree huggers did reduce the visible effects
      of hanging in your hammock.

      I'm pleased that you determined tree hugger use is worth your trouble. I
      find using the huggers easier than tying to the tree, since I can get the
      trees wrapped with the huggers before I take the hammock out, and once hung,
      adjusting the hammock, which requires movement of the rope, is easier when I
      use the huggers than when I have to move all that line around the tree. But
      everyone's different.

      As for the tarp, it's nice to use the supplied clips but I find they allow
      the tarp to sag and slack the pitch when I get into the hammock. Thus I
      prefer to tie the tarp ridgeline clips directly to the tree huggers once the
      hammock is up. Then the hammock does sag a bit lower than the tarp, which is
      actually nice in all but blowing rain. In the case of blowing rain, I'll use
      my larger tarp on the hammock.

      Keep up the field tests!


      -----Original Message-----
      From: hammockcamping@yahoogroups.com
      [mailto:hammockcamping@yahoogroups.com]On Behalf Of Scott Macri
      Sent: Thursday, August 17, 2006 12:21 PM
      To: hammockcamping@yahoogroups.com
      Subject: Re: [Hammock Camping] Re: rope vs. tree hugger

      "To cast any
      type of rope as tree damaging because certain types of ropes damage
      trees is stretching the truth. "

      Please note in my post I was specifically referring to the rope on the HH
      Ultralight Backpacker hammock. Also, I used the 4-wrap knot during these
      tests. The rope may have been less than 30* and a bit taut.

      The rain fly on the Hennessey Hammocks are attached to the suspension rope
      and not tied to the tree with a different rope. This may or may not help
      eliminate damage.

      For me, it is much less hastle to use the suspension rope on the HH than
      mess with the huggers. I was just trying to determine if it was
      worthwhile. In conclusion, I determined it is worth using the huggers
      because the rope on the HH Ultralight Backpacker causes too much damage to
      the tree.

      I was simply sharing my results with the group.

      On 8/17/06, Dave Womble <dpwomble@...> wrote:
      > Scott,
      > The ropes on the Hennessy Hammocks are well known to not be tree
      > friendly. I don't think anyone intended to imply that those
      > particular ropes should be attached directly to trees.
      > There are many different types of rope, some of it very small
      > diameter for a given strength and non-flattening, some of it tubular
      > to the extend that it is almost like doubled-up webbing and of
      > course there are many types between those extremes. To cast any
      > type of rope as tree damaging because certain types of ropes damage
      > trees is stretching the truth.
      > There are also many techniques for attaching webbing or rope to
      > trees and those can have a significant impact on how much and what
      > kind of damage might occur to trees. Ed Speer's multi-wrap
      > technique can be applied to rope as easily as webbing and finished
      > with two half hitches, the last with a slip loop, for added
      > security, especially with more slippery types of rope. This simple
      > technique does require longer lengths of rope but will lessen the
      > impact for any rope or webbing that is used.
      > Some attachment methods are cinching and some are not, some hammocks
      > are initially hung at an angle up to 30 degrees reference to the
      > horizon and some are initially hung fairly taut-- both of these
      > issues factor in to what tree damage might occur as well. A
      > cinching attachment applies a strangulation type force around the
      > whole circumference of the tree when the friction between the tree
      > and the rope or webbing is low enough to allow it and is in addition
      > to the force on the back side of the tree... but if there is enough
      > friction the forces may be primarily along the sides of the tree
      > trying to pull the bark off the tree (not that it is going to do
      > that). Hammocks that are initially hung fairly taut are going to
      > apply more force onto the trees they are attached to when they are
      > weighted by the occupant as compared to a hammock that is initially
      > hung at a 30 degree or so angle, maybe by an amount that is up to
      > double or triple the force depending of certain factors. Hammocks
      > that are initially hung taut are more prone to damaging the sides of
      > the trees by pulling the bark off the tree because of the tremendous
      > forces generated when the hammock is occupied and then drops to some
      > angle... you are starting out with huge forces, something has to
      > give and with high friction webbing it might be the tree bark.
      > Another thing to keep in mind is that the weight of the occupant
      > affects how much force is applied to a tree. It is not necessary
      > for someone that weighs much less than another person to have to use
      > the same rope size, webbing size or tree hugger width.
      > Most folks use small diameter rope to attach their light weight
      > tarps to trees to cover their hammocks. These lines can also mark
      > tree bark. Again, Ed Speer's multi-wrap technique can reduce that
      > by spreading out the forces over multiple wraps... of course I
      > realize that all of the anti-rope with hammocks folks wouldn't be
      > hypocritical enough to not be using wide webbing to attach their
      > tarps to the tender barks of trees. <grin>
      > Dave

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