R20G weighs 32# per section and uses 9/32 inch side bracing
and 18 ga rail tubes (25G: 40#, 5/16 inch braces and 16 ga.).
Rohn says 20G can be used self-supporting 28 feet above
house bracket with 2 sq ft load at 70mph (33 feet for 25G).
Moment of restraint for 20G is 3170 ft#, 5130 ft# for 25G.
Deleted original post too quickly. Send me your address if you
want copies of Rohn spec sheets.
Ed Jensen, K5ED, El Paso, TX (email@example.com)
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Administrative requests: towertalk-REQUEST@contesting.com
Sponsored by Akorn Access, Inc & KM9P