8285Re: [Hammock Camping] 1" webbing and D-rings
- Feb 20, 2005It should be noted as well that whether you use nylon or polypropylene is more important
depending on which type of hammock suspension system you use. A hennessy style
suspension, with a very small amount of webbing (just the tree huggers), uses nylon
webbing, and with no noticable ill effects. Using webbing for the entire suspension
system, however, a la Speer, magnifies those unnoticable ill effects into a true problem.
Additionally, Hennessy's are typically hung higher (because of a bottom entry/exit) than
Speer hammocks (side entry/exit), further exacerbating the problem for Speer users, who
would use nylon webbing.
--- In firstname.lastname@example.org, "Ed Speer" <ed@s...> wrote:
> I missed this one-thanks for the question Jeff and your response Rick. I'd
> like to expand a bit on Jeff's question and address a few other concerns of
> probable interest to the hammock maker. Although comparing the same width
> of webbing, there are still wildly differing features to consider. Most
> 1-inch wide single layer webbing comes in 'Heavy Weave', Stiff Weave', 'Soft
> Weave, etc. These all have different breaking strengths and different
> stretch characteristics. Unfortunately most sales clerks in retail stores
> that sell webbing don't know the breaking strength of the webbing offered;
> even many manufacturers don't list the breaking strength on the package. If
> the breaking strength is not listed on the manufacturer's package, it's
> probably 350 or less!-buyer be ware and do NOT use any webbing with unknown
> breaking strength. Use only +600 pound breaking strength webbing-I
> recommend, use and sell +750 pound. For folks over 250 pounds, I recommend
> +1,000 pound breaking strength-this generally requires 1.5" wide single
> layer webbing.
> Now let's consider different webbing material:
> Nylon and polypropylene webbing all stretch and nylon is stronger, but it
> stretches differently than polypropylene. For hammocks the high-memory
> stretch of nylon is unsuitable since it returns to its original length every
> time the load is removed. It can be impossible to properly adjust the
> hammock-the hammock is pulled tight, but your butt hits the ground when you
> get in; you get out to adjust and the hammock springs back to its tight
> position! The low-memory stretch of polypropylene is desirable since it
> retains its length when the load is removed-thus allowing the hammock to
> remain adjusted once the straps are stretched out the first time. This may
> not make much sense in writing, but the differences become readily evident
> in actual use! Again I recommend, use and sell polypropylene webbing.
> Polyester webbing is a good choice, but it's near impossible to buy in small
> amounts for reasonable money. Polyester webbing hardly stretches at all and
> is stronger than polypropylene (but not as strong as nylon). It is made by
> special order only, meaning 20,000 yds at a time-once I found 200 yds for
> sell as overruns, but don't have any left.
> Also, it is virtually impossible for me to visibly distinguish between
> nylon, polypropylene or polyester webbing-again buyer be ware and insist on
> seeing the manufactures packaging.
> My book goes into a bit more explanation about suitable webbing, but this is
> the gist of it.
> Hope this helps Jeff. Happy hammocking..Ed
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