In a message dated 4/22/03 11:35:48 AM Pacific Daylight Time, jerry@rchco.com
writes:
> Rohn used to have a schedule of height vs wind load self support above
> the bracket. Can't seem to find it on line now...?
> Anyone know the url?
> My recollection is 6 sq. ft of antenna, 70 mph, allowed 39' above the
> bracket.
> Any help out there?
There is a Rohn pamphlet called "Manufacturer's Technical Information for
Bracketed or Self Supporting Towers". I used to have a bunch but have mailed
them out over the years so don't have one handy I can send you. Give me your
fax number and I can fax it to you.
Forty-feet of bracketed 45G needs brackets at 15 and 30 feet but will
handle 36.7 sq.ft. @ 70 MPH.
Your memory is pretty good. The maximum distance in the specs is 34 feet
which will give you a capacity of 5.5 sq.ft. @ 70 MPH or 2 sq.ft. @ 80 MPH.
Cheers,
Steve K7LXC
TOWER TECH -
Professional tower services for commercial and amateur
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