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Re: [TowerTalk] The inertia of rest and the tilt over

To: "'Michael OBrien'" <k0myw@sbcglobal.net>, "'Larry Loen'" <lwloen@gmail.com>, "'Dana Segler'" <dana.segler@gmail.com>
Subject: Re: [TowerTalk] The inertia of rest and the tilt over
From: "John Lemay" <john@carltonhouse.eclipse.co.uk>
Date: Tue, 22 Jan 2013 20:11:59 -0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I think this is common with most tilt-over towers. It certainly applies to
the UK manufactured Versatower. The first few degrees movement from vertical
is overcoming a "self-righting" force which occurs because of where the
pivot lies in relation to the center of gravity of the tower. It is a good
thing, because when vertical, there is little or no remaining force on the
winch and the winch cable is under no tension.

 

John G4ZTR

 

  _____  

From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Michael OBrien
Sent: 22 January 2013 20:04
To: Larry Loen; Dana Segler
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] The inertia of rest and the tilt over

 

My HDX-55 behaves the same way -- which I actually find reassuring.

To get it started tipping, I put a minimal amount of slack in the tilt
fixture cable, then use a five-foot-long metal pry bar to nudge the tower
off-balance.

Mike, K0MYW


--- On Tue, 1/22/13, Dana Segler <dana.segler@gmail.com> wrote:

> From: Dana Segler <dana.segler@gmail.com>
> Subject: Re: [TowerTalk] The inertia of rest and the tilt over
> To: "Larry Loen" <lwloen@gmail.com>
> Cc: towertalk@contesting.com
> Date: Tuesday, January 22, 2013, 1:58 PM
> Larry
>
> I am also in the process of setting up  an HDX572 and
> have had the
> identical experience. I discussed it with a friend who also
> has an HDX and
> he agreed that it was to be expected.
>
> If the tower is really plumb, it simply takes a little
> movement to get it
> off center enough to crank down (levering over with a 2x4
> has been
> mentioned!)
> Dana Franklin Segler
> W5PK
>
> On Tue, Jan 22, 2013 at 1:41 PM, Larry Loen <lwloen@gmail.com>
> wrote:
>
> > I had a lot of difficulty getting started on tilting
> over my tower.  Before
> > I installed the tower, I checked out the base and the
> contractor did an
> > excellent job.  The thing was stone cold
> level.  I haven't checked since,
> > but  I doubt if this has changed (did I mention my
> eight foot deep base?).
> >
> > So, when I took out the bolts (as you'd expect me to
> do) and put some slick
> > in the tilt-over appliance, absolutely nothing
> happened.
> >
> > It took some difficulty and a little crudity I don't
> want to repeat to get
> > that first inch or so of tilt and THEN the tower folded
> over fine.
> >
> > Is this a problem for anyone else?  Right now,
> there's no antenna on top,
> > so there's basically nothing to "pull" the tower
> backwards after the bolts
> > are released.
> >
> > How does this problem gets solved in a way that is safe
> for the operator
> > and the tower?  Mine is a HDX 572.
> >
> >
> > Larry Wo0Z
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> _______________________________________________
>
>
>
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>
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