PREFACE: I wanted to make a smaller, lightweight tarp to complement my very large OES MacCat Ultra SpinnUL. I wanted to make it in spinnaker but, that waterproof spinnaker is no longer available for purchase. I contemplated going to cuben, but basically chickened out
DESCRIPTION: The tarp is 116" long x 59" wide at the center (63" wide at the tie-outs). It I made of 1.36 oz/SY (coated weight) silnylon from Quest which was 66" wide and 120" long in forest green ripstop. I used Gutterman's sew-all 100% polyester thread, also in forest green.
There is no ridgeline seam and the edges are a true catenary cut at 3/4" per foot. The edges are rolled twice and sewn. The corners at the ridgeline started out at 90* before the cat cuts.
The corner re-enforcements are double layer silnylon (3 layers incl tarp) with 3/4" wide grosgain running 4" away from the corners. The tie-out loops are grosgain. Only corners are seamed sealed (top & bottom) for added strength.
The two tie-outs on one side and one ridgeline tie-out have a 10" long piece of 1/8" shock cord loop as an auto-tensioner. There are two figure 9's, one on each end of the ridgeline. The guylines are permanently attached 1.75mm Zing-It. A small prusik loop connects the shock cord to the guyline for adjustment. (I use a marlin spike hitch on the stake).
It all fits into a 4"x4"x4" stuff sack made from the same material. Total weight including guylines, tensioners, figure 9's and stuff sack is 7.5 ounces.
I wouldn't change a single thing about it.
And yes, it happened ... and here are the pics to prove it
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