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eric
Since 13 Jan 2006
1840 Posts
XTreme Poster
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 Wed Aug 02, 23 6:47 am Wing Ding Mechanical Engineering question |
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I want to add some stainless swivels to my leashes. What load in lbs would be more than enough to handle a wing getting ripped out of hand by strong gorge winds? Looking for something better than overkill or a guess….
Thanks
Eric
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Ho-Toe
Since 30 Apr 2014
231 Posts
pissed-off science guy like Bill Nye
CO2 quantifier & upwelling specialist
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danf
Since 12 Jun 2009
108 Posts
Stoked
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| Wed Aug 02, 23 12:29 pm |
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I have been using these for a couple of years with zero failures in fresh and salt water with no corrosion, 550# test. I also setup a static drop test, I can't remember exactly what I did but it was pretty violent. I think I did 10 lbs from 4 feet. It snapped some old 500 pound Q power kite line so I repeated it with 1/4" spectra and the swivel was fine. The load was way more than I would ever expect from a wing especially with a bungy leash.
If you take apart a typical surf leash the swivel looks identical to these.
https://www.amazon.com/dp/B08NFVQTG2?ref=ppx_yo2ov_dt_b_product_details&th=1&psc=1
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swivel.jpg |
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eric
Since 13 Jan 2006
1840 Posts
XTreme Poster
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| Wed Aug 02, 23 1:13 pm |
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Thanks so much Dan. I was hoping you’d chime in!
Eric
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eric
Since 13 Jan 2006
1840 Posts
XTreme Poster
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| Wed Aug 02, 23 1:14 pm |
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Thanks so much Dan. I was hoping you’d chime in!
Eric
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danf
Since 12 Jun 2009
108 Posts
Stoked
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| Wed Aug 02, 23 3:28 pm |
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Eric, if you learned how to fid a Brummel loop with dyneema back in the day when we were trying to kill ourselves with shackles those skills will come in handy 😀 I fid a loop around the eye of the swivel to attach it to my bungy leash FYI, I think NSI might be making something similar now.
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brummel.jpg |
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eric
Since 13 Jan 2006
1840 Posts
XTreme Poster
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| Wed Aug 02, 23 5:37 pm |
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| Yes, I have this skill. Thanks again Dan.
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Mlander
Since 06 Oct 2010
33 Posts
Mosier, Or
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| Fri Aug 04, 23 10:39 am North Shore Inc in HR has swivels |
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| North Shore Inc in HR has swivels exactly like the picture above except they've got a 2" spliced loop on each end so they are easy to connect to most kite leashes. I think one or two shops in town also carry them.
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eric
Since 13 Jan 2006
1840 Posts
XTreme Poster
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| Sat Aug 05, 23 11:08 am |
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Took an hour to make the first one. But hey I saved like $1.00…
Second through 4th about 15 min each.
Kinda fun.
Eric
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IMG_7913.jpeg |
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ldhr
Since 21 Jul 2009
1487 Posts
Hood River
XTreme Poster
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| Tue Aug 08, 23 9:33 am |
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| eric wrote: | Took an hour to make the first one. But hey I saved like $1.00…
Second through 4th about 15 min each.
Kinda fun.
Eric |
Next non-windy day.... make a hundred.... sell them out of the back of your van down by the river. I'll buy 1 or 2.
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