Did you check to see if both wind ratings were made from the same
standard? Their has been lots of changes in recent years causing lots
of confusion, especially when the MFG doesn't say what standard was used.
Patrick NJ5G
On 6/10/2017 9:00 AM, Richard Thorne wrote:
This may not be comparing apples to apples but here's my question
after studying the two towers.
US Tower HDX-89 claims 9.2 sq ft of max allowable antenna wind area 90
mph 3 second gust
Tash DX86 claims 21 sq ft of max allowable antenna wind area 85 mph 3
sec gust
After looking at both designs they both start with a lower section
that is 28.75" wide and a top section that is 13 7/8" (Tash) and 13
15/16" (US Tower)
So the designs appear to be the same, why are the allow able antenna
wind loads so different? I realize that one is based on 90 mph the
other on 85 mph. Does the 5 mph delta add up to a 11.8 sq ft difference?
Thanks in advance.
Rich - N5ZC
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