Despite my windy QTH, I am seriously thinking of erecting a two element 
30/40M quad on a 20' boom.  The spreaders would, most likely, be in four 
8' sections tapering from 2" diameter at the spider end to 1-1/4" at the 
far end.  If I were to fabricate my own spiders from, say, 1-1/2" 
aluminum angle stock, I wonder what would be the optimum arm length to 
obtain a balance between reasonable weight and strength.  If anyone has 
any practical experience with such a beast, I would appreciate hearing 
about it.
73, Joe
K2XX
_______________________________________________
See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.
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