This is in Rohn document #A871266R1 dated 9-24-87. Not sure if it's ever been
updated after that.
30' of 25G, NO ICE, 70 mph wind, is rated 6.4 square feet. With 1/2" ice at 70
mph, 2.5 square feet.
At 80 mph, NO ICE, 3.7 s.f. At 80 mph, 1/2" ice, 0.0 s.f.
At 90 mph, NO ICE, 1.7 s.f. At 90 mph, 1/2" ice, 0.0 s.f.
"Designs assume transmission lines symmetrically placed as follows: #25 tower,
ONE 5/8" line on each face (total = 3)."
"Allowable antenna areas assume round antenna members." (This means round
tubing used for all members, not square tubing.)
WB2WIK/6
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of RICHARD SOLOMON
Sent: Thursday, June 18, 2009 2:40 PM
To: TowerTalk
Subject: [TowerTalk] Rohn 25G Spec Question
I couldn't find my answer in the Rohn Catalog, but then I may have missed it.
What is the acceptable wind load for 30 feet of Rohn 25, UNGUYED.
Thanks, Dick, W1KSZ
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