[TowerTalk] Phillystran Tension Gage

[John Keating]

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. It involved a 6' 2x4 with
pulleys at each end and required calibrating the deflection under load of
the phillystran in the center of the span between the pulleys using a pull
gauge (I used a cheap fishing scale). You can sanity check the results with
a bit of trigonometry.

 

John

 

On 7/12/2021 7:22 AM, Dave Eagle wrote:

>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 thinking I could utilize the Loos PT-1 or
PT-2 but the ranges don't match the manufacturers >specs.? The GM docs that
I have call for 100-175 lbs.

>Is there anything available to measure the force in that range that will
take a .22" phillystran?

>Thanks,

>DaveKB8NNU