[TowerTalk] Unguyed, with house bracket?..warning

[J. Gordon Beattie, Jr., W2TTT]

Jack,
What software did you use and can it be used to analyze bracketed Rohn 25?
Thanks & 73,
Gordon Beattie, W2TTT
201.314.6964


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Jack/W6NF
Sent: 15 November, 2007 14:15
To: TOWERTALK at contesting.com
Subject: Re: [TowerTalk] Unguyed, with house bracket?..warning

Even properly attached to the fascia you must be careful. I recently 
made an inquiry about my Tri-Ex T-15, which is slightly larger than Rohn 
25, and was told that bracketed at about 13 feet the design software 
predicted the need for guys at a height of 35 feet. Without the guys the 
software showed possible failure of cross braces at maximum wind velocity.

This is with a KT-34XA at the top and at a wind speed of 90 miles per 
hour, which is required for my area. The necessary guying is minimal 
with two of the guys (southwest and northwest) secured to the roof of my 
garage and the east guy attached to a normal ground guy point. And, yes 
this is with the bracket attached to the wall of the garage and bolted 
through a 2x6 on the inside of the garage wall studs.

73,

Jack, W6NF
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk