Author: "R. David Eagle via TowerTalk" <towertalk@contesting.com>
Date: Mon, 12 Jul 2021 19:07:04 +0000 (UTC)
Hello, I recently put up a 40' Glen Martin tower with phillystran guys (.22"). I was looking for a way to measure the tension on the Phillystran to balance the install out. I was originally think
Dave, I do not have a sugjestion on phillystran.. your discription you .22 phillystran gos to the ground NO steel cable ? All my towers 4 have steel tails at ground level and use a Loose-2 on the žin
Hi Dave, After searching far and wide to come to the conclusion there is none commercially available, I built my own tension gauge based on a suggestion from K6OK who did the engineering on my tower.
The required steel leaders at the ground ends are in series with your Phillystan - no worries - so no problem for the Loos Gage. https://www.dxengineering.com/parts/loo-pt-2 73, Tim K3LR @ DX Enginee
Author: Steve Dyer via TowerTalk <towertalk@contesting.com>
Date: Mon, 12 Jul 2021 21:57:40 -0700
Loos says "All readings are based on 302/304 1x19 S.S breaking strengths". Always wondered how to translate to different cable materials such as EHS? Or does it not really matter... 73, Steve W1SRD h
I imagine that the stiffer EHS gives a higher tension reading than it actually is. Perhaps a different scale would be useful. I find the Loos gauge to be much better than using no gauge, which I what
Author: "R. David Eagle via TowerTalk" <towertalk@contesting.com>
Date: Tue, 13 Jul 2021 12:46:37 +0000 (UTC)
Thanks to everyone for their input! Everyone mentions putting the tails on the philly and no where in the manual from GM was it mentioned. It sounds to me like someone had a tower "burn" down at so
I have been using Loose gauge for years on EHS and Phillystran/EHS tailed guyed towers. If I get a chance Ill get my 12 step ladder and measure the difference between the EHS tail and the Phillystran
After searching far and wide to come to the conclusion there is none commercially available, I built my own tension gauge I'm super confused here. I haven't looked for tension gauges since putting up
There is a method without using a gauge: https://www.pbo.co.uk/gear/pbo-tested-4-rig-tension-gauges-45215 YMMV -de John NI0K KD7JYK DM09 wrote on 7/13/2021 2:27 PM: After searching far and wide to co
The Loos tension gauge is for sailboat rigging. You can place it across Phillystran, I have done this out of curiosity however I do not recall the results well enough to post them. Since you're using
It matters.... The Loos measures the amount of deflection on whatever cable is being tested. If the cable isn't the size that the Loos isn't calibrated for then the reading isn't going to be correct
Kurt, Not really. The guage should be calibrated for whatever cable one intends to measure. It's that simple. 73, Charlie, N0TT _______________________________________________ _______________________
Calibrating against the actual fiber is *probably* good enough for ham tower work, BUT Be aware that the Kevlar fibers of Phillystran behave very differently than steel wire. The Kevlar fiber is very
Be aware that the Kevlar fibers of Phillystran behave very differently than steel wire. The Kevlar fiber is very strong axially with about 60% the modulus of steel. The fiber also has very complex
Grant (and all), This thread is getting really interesting to me. I'm certainly no mechanical engineer but I'm beginning to understand how these things work and can certainly see what the Loos gauge
Author: "R. David Eagle via TowerTalk" <towertalk@contesting.com>
Date: Wed, 14 Jul 2021 12:30:10 +0000 (UTC)
This is a good discussion! I have learned alot so far! I did a little digging around and I think I am going to rig up a deflection gizzmo to measure the tension and see how it turns out. I have so
Here is one way, there are probably others. 1. The turnbuckle is opened up all the way. The free end of the guy wire is passed through the eye of the turnbuckle but not connected. 2. The tension gau
I'm not quite understanding the "probably"? If you calibrate a simple side force deflection meter with the actual rope, then it will fully take into account any anisotropic or nonlinear behavior. OP'
I am very interested in your results when/if you measure the deflection of the EHS vs. Phillystran on the same guy with your Loos gauge (please let us know which Loos gauge you use). I am tensioning