I'm not familiar with this tower, but at first glance this looks to
be an excellent design for aluminum, very intriguing. One,
the mechanical collars for the brace joints are so much
better than welding as it avoids the large strength reduction
(over 50%) due to the loss of temper in the heat affected zone.
Two, the use of round legs and round braces -- much, much
better than angle shapes, which vary in strength depending
on load direction and are prone to local buckling. Three, the
use of collars for the brace joints avoid the loss of strength
due to drilling a hole in the leg for a bolt.
A formal analysis would have to be done but I would not
be surprised if this design turns out to be one the most
efficient uses of aluminum for a tower possible.
73 Jim K6OK
Jeff Liebermann wrote:
>> JV (K6HJU) obtained a rather odd aluminum tower and needs
>> help identifying the manufacture in order to obtain a spec
>> sheet. ... GALCO 13-199ASSY786G420-110
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