Maybe I can help out with the question on mast strengths.
I would like to suggest that you E mail me your address. Our company
First Call Communications have come out with a New four page newsletter
that devotes a full page to "when is a mast really a mast". This page
covers all different strengths and what a person should know before
putting up a mast on their tower Actually, the newsletter is for anyone
looking to put up a tower for it covers; REBAR, TOWER PERMIT
APPLICATION,GROUNDING,ROTATORS and other important subjects. Another area
of interest deals with TOWER INSTALLATION nation wide.(the newsletter is
free with a SASE-please)
I'm sure you will like the mast section, it will help you.....
Regards,
Joel, K2QBV
FIRST CALL COMMUNICATIONS,INC
(a direct distributor for US TOWER CORPORATION)
****************************************************************
Peter J. F. Shaw wrote:
> Greetings Dick W5AA & TowerTalkians:
> Did anyone entirely translate the spec information contained in the
> posting below? I remember a single posting from K7LXC indicating that
> maybe the pipe was maybe a sched 40 and not strong enough. I was
> expecting (and hoping for) a lesson on how to translate the coding.
> 73 Pete K4LDR Citrus County, FL
> ----------------------------------------------------------------------
> ------------
> From: Richard J Brown <rjbro@MISNET.COM>
> To: towertalk@contesting.com <towertalk@contesting.com>
> Subject: [TowerTalk] mast strength.
To: <towertalk@contesting.com>
> Date: Thursday, January 28, 1999 20.21
>
> I have a twelve foot long piece of galvanized pipe I want to use for
> a mast. On the pipe is stamped in red ---
> " Wheatland cbw rn 1176 cbw rm 1504 astm A53 -f- gra 40 A 21 foo
> 32698 DI." This has an outside Diameter of one and three quarter
> inches. It just does fit through the rohn 2" thrust bearing... I
> want to use it to mount a beam with a 4.9 square foot wind surface
> at the top of the mast pipe which is sticking ten feet out of the
> top of a flat top rohn 25 top section with the rohn thrust
> bearing on the flat top and a rotor in the usual place. How much wind
> would it take to bend this pipe??
> Thanks Dick W5AA
> -----------------------
>
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