[TowerTalk] Tilt over tower

[Kirk Kleinschmidt]

Yes! And moreover, HOW should the cable attach to the HBX lattice tower structure?
I'm looking to tilt my 32- or 40-foot HBX (32-foot if it's in the HDBX configuration) where it will be bracketed to the peak of my roof (where the top pulley lives), which is about 15 feet up (a bit higher than the OP).
Mine will be sporting a lightweight hex beam or a stack of small VHF/UHF Yagis.
I have always wanted to find a reasonably definitive tilt-over calculator that defines the lifting strength required (varies with tilt angle), optimal height above ground for attaching the tower connection, load stress on the top pulley, etc.
If there are any trigonometry and/or mechanical engineers lurking, please spill the beans!
73,
--Kirk, NT0Z

My book, "Stealth Amateur Radio," is now available from www.stealthamateur.com and on the Amazon Kindle (soon) 

    On Wednesday, August 18, 2021, 07:54:55 AM CDT, John Simmons <jasimmons at pinewooddata.com> wrote:  
 
 Subject: Rohn HDBX48 with Tailtwister rotor and 90 lb yagi with Rohn 
tilt over base.

Question: With the lifting pulley at 10 feet high, how high up the tower 
should the lifting cable be attached? Why?

-de John NI0K
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