Force on tarp tie out points

[Dave @ Oware]

Wondering what people have come up with for force on tie out points on tents and tarps?

I have seen figures ranging from 20 on a little solo tarp to I think, 40 pounds on a two person tent. I don’t have the links.

What say you?

[Michael B]

For what conditions?

found this handy dandy site

https://www.omnicalculator.com/physics/wind-load

[Jerry Adams]

I vaguely remember an article by Ryan, hmmm….

https://backpackinglight.com/storm_resistance_ultralight_shelters_part_1_intro/

“Generally, moderately stormy conditions (snowfall equivalents of several inches through a night, or wind loads induced by 30-40 mph / 48-64 kph winds) can transfer up to about 40 pounds (18 kg) of tension force to guylines and stake-out points for most solo shelters. If a stake pulls out of the ground with only 40 pounds (18 kg) of force, and you are expecting moderate storms, then you might reconsider your choice of stake. For more information, refer to Will Rietveld’s research on stake failure forces.”

but the link to Will Rietveld’s article is broken

[Dave @ Oware]

Jerry that looks like one I remember.

When I get a chance I will try plugging in some numbers in that physics site.

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