RE: [TowerTalk] 'falling derrick' tower erection

["Richard Karlquist" <richard@karlquist.com>]

> There is a published design to keep the beams horizontal during layover, 
> by the way.  
 > N2EA
> jimjarvis@ieee.org 


Anyone have a pointer to this published design?
I've been trying to figure out clever ways to do
this.

Rick N6RK
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