[TowerTalk] ma 550 windload vs. Mast Height

[Jim Smith]

ARRL Antenna Handbook, 19th Ed., pp 22-19/22-20 appear to deal with this 
problem.

73 de Jim Smith    VE7FO

Jim Jarvis wrote:

>US Tower rates the MA550 based on windload present
>1' above the top of the tower.  Windload derating is
>necessary, as mast height is added above the tower 
>top.
>
>Are there any structural guys on this reflector who would care to
>wade into analysis on what happens if the load is 5' or 10'
>above the top of the tower?
>
>Jim N2EA
>
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