I just found the exact mast and as near as I can tell from a number of
sources it is 40000 PSI. I just put a Force 12 4BA at 11' above the
tower and a EF320 at 1.5' above the tower. They are rated a 7.5 sqft for
the 4BA and 4.3 sqft for the EF320 but not at the same angle. I figure it
will probably stay up with 70mph winds but maybe not well see. I used the
MARC program.
73 Steve W8GAZ
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From: Richard Thorne
Sent: Monday, May 26, 1997 2:00 PM
To: steve; 'towertalk@contesting.com'
Subject: [TowerTalk] ALUMINUM MAST
I have a 18' by 2" od by .25" wall 6061-T6511 aluminum mast. Anybody
out there know the yield strength?
I got a copy of the mast program, "MARC", from K7LXC. Nice software,
easy to use. I would recommend it to anyone planning a tower. Once
I know the yield strength of my mast I'll know what I can put on it.
I'm hoping my C3 and a 2 element 40 meter.
--
73,
Rich Thorne - WB5M
Amarillo, TX
rthorne@arn.net
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