[TowerTalk] Differentiating Tri-Ex Towers

[Mickey Baker]

Allow me to document an answer to own posting for the record. A lot of you
were helpful, but Ron, W8RJL, sent me exactly the information I was seeking
in a form that I understood immediately.

Tri-Ex produced a number of different size tower sections for telescoping
towers. This "Cross Section Details" drawing identifies the sections by
"Section No." in the drawing, with dimensions of sections 5, 6, 7 and 8 on
this drawing.

A table at the bottom of the drawing identifies LM and HM towers current as
of the drawing (1972) and the sections used for each tower. The HM-354, for
example, uses section numbers 6, 7, and 8, where the lighter LM-354 uses
smaller sections 5, 6, and 7.

Tashjian's drawing of the modern LM-354HD identifies that it uses section
numbers 6, 7 and 8.

I don't know if there are addition changes, but it seems logical that an
HM-354 has been re-designated  "LM-354HD."
Concrete Base designs appear identical - I can find no differences in these
towers.

If anyone has more information, please reply!

You can view the drawing Ron sent me at:

http://picasaweb.google.com/lh/photo/CVk025s4JUMTkn-xtJ7-Fw?feat=directlink

Thanks!
Mickey, N4MB

On Sun, Aug 1, 2010 at 9:55 PM, Mickey Baker <fishflorida at gmail.com> wrote:

> How would one tell if a tower were a LM-354, LM-354HD or an HM-354?
>
> Should there be a data plate or descriptive weld?
>
> Thanks and 73,
>
> Mickey, N4MB
>
>


-- 
Mickey Baker
Fort Lauderdale, FL
“Tell me, and I will listen. Show me, and I will understand. Involve me, and
I will learn.” Teton Lakota, American Indian Saying.