[TowerTalk] Tilting tower query

[donovanf at starpower.net]

Baz,

Forces on the short mast in a "assymetrical seesaw" would be very high.

Here's how to do it safely:

http://www.n6rk.com/falling_derrick_gme/falling_derrick_gme.html

This can also be engineered as a permanently installed fixture.

73!
Frank
W3LPL


---- Original message ----
>Date: Fri, 13 Jul 2007 13:20:45 +0700
>From: "Barry Kirkwood" <barry.kirkwood at gmail.com>  
>Subject: [TowerTalk] Tilting tower query  
>To: TowerTalk at contesting.com
>
>Greetings:
>Has anyone experience or comments on non telescoping tilting towers?
>That is: A rigid tubular or lattice mast with a stub mast and hinge.
>In the down posture looks like an assymetrical seesaw.
>Remember years back in a photo in the front pages of QST saw one of tubular
>steel maybe 100ft tall.
>In my case have a rugged lattice tower, 6x 10ft sections, wondering about
>making it a tilt tower.
>Would value any opinions, reports on experience before I spend money on
>calculations by a professional engineer.
>tnx es 73
>Baz ZL1DD