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Re: [TowerTalk] Loos Tension Gauge

To: "Stone, Gary R." <>,"towertalk" <>
Subject: Re: [TowerTalk] Loos Tension Gauge
From: "Tom Rauch" <>
Reply-to: Tom Rauch <>
Date: Mon, 8 Aug 2005 10:44:28 -0400
List-post: <>
> Wow - this is interesting.  Can we get a definite answer
on how to measure
> Phillystran?  That is a real difference.  I have 1/4
Phillystran and using
> my Loos I have been shooting for about 35 (650 or so -
which is 10%) but
> if it is inaccurate I may be tightening too tight?

Maybe the Phillystran is too high.

Maybe the EHS is too low.

I have no idea. I just know they are hugely different when I
use the same OD materials.

> Also of interest is that I am (and probably others also)
actually putting
> the Loos device on EHS 1/4 inch because the first 15 feet
or so is EHS as is
> recommended.  I don't think I would have a tall enough
ladder to check the
> Phillystran itself but that would be interesting?

I can't see how vastly different stiffness or surface
hardness materials would read the same because the Loos
deflects a **very small length** of material between two
close-spaced fixed stops. It measures that deflection at the
end of a calibrated lever a larger distance away. It would
be interesting to see how various materials and diameters
compare with that setup.

I think it would be significantly less material sensitive if
the two fixed posts were further apart.

73 Tom


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