Re: JRB Tarp suspension?
- I use 9' lengths of cord on each corner. Tensioners aren't
required, but they sure do help keep the tarp tight as it stretches
For the main ridgeline, putting one long cord underneath a tarp like
the JRB will have two effects. First, it will prevent it from
approximating a catenary, which will make it flap in the wind.
Second, it will put pressure on the underside of the tarp...the wind
could cause wear and tear by slapping the the tarp against the cord,
and the cord could speed leakage through the tarp at that point.
Therefore, I just attach a 9' length to each corner.
Spectra isn't necessary for tarps, but it's light and strong. Keep
in mind that you want the cord to fail before the tarp fails in
strong winds. Repairing a broken cord is as simple as one
knot...repairing a ripped tarp in the backcountry could spell
trouble. So I just use a light cord (about 2mm) w/o spectra core.
JRB's tarp tensioners are also 2mm cord...they work better than my
homemade ones because of the heavier duty tubing.
Enjoy your new gear!