Dave Leeson, W6NL designed a great solution to the rotor-to- Beam shock
absorber problem, using a rubber BMW steering shaft coupler....But that, as
you say, was a different cart of apples than the Killer spring-guy wire idea.
I have Leeson's Masterpiece, "Physical Design of Yagi Antennas" (covering a lot
on towers, also) in storage, somwhwere, and miss thumbing through it once in a
while. A real gem. It should be a reference in the Bookshelf of any Tower
owner/user.
Manufacturers ought to incorporate mention of same, so that Leeson's great
idea can meet the high standards of Steve's prime directive.
All the best, Pat Barthelow AA6EG Skype: sparky599aa6eg@k6bj.org
http://www.jamesburgdish.org
> From: wa3gin@comcast.net
> To: K7LXC@aol.com; towertalk@contesting.com; draxfelton@gmail.com
> Date: Sun, 26 Oct 2008 08:24:48 -0400
> Subject: Re: [TowerTalk] Spring between equalizer plate and earth anchor
>
> I remember some folks using springs like this in their rotor to mast
> connection ala Back Lash....maybe somewhere down the line the story was
> mis-understood and the coils migrated to guy cables -- scary!
>
> 73,
> dave
> wa3gin
----- Original Message -----
From: <K7LXC@aol.com>
To: <towertalk@contesting.com>; <draxfelton@gmail.com>
Sent: Sunday, October 26, 2008 7:43 AM
Subject: Re: [TowerTalk] Spring between equalizer plate and earth anchor
In a message dated 10/25/2008 9:26:45 P.M. Pacific Daylight Time,
towertalk-request@contesting.com writes:
A local ham told me to get some heavy duty hood springs from a
1950-1960's car and put them between my guy wire equalizer plates and earth
anchors.
This is to "prevent backlash" during storm force winds.
Any thoughts on this?
You bet. This is a particularly stupid idea. Is there anything like
this that's even suggested by the manufacturer? No way.
By backlash, I assume he's talking about slack in the guys. If the guys
are properly tensioned, there's no need to "prevent backlash" because there
is no slack on the guys.
And besides, you've got no idea what the strength of the hood springs
are. How would you attach them?
In all things the LXC Prime Directive still trumps amateur old wives'
tales: "DO what the manufacturer says." The converse is also true "DON'T
DO what they don't tell you." And congratulations for checking on TowerTalk
before following this
very poor - and potentially fatal - advice.
Cheers,
Steve K7LXC
TOWER TECH
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