Rohn Tower specs discuss 0.5 and 1 degree out of plumb for some construction
tolerances. That would be ½ a foot to 1 foot out of plumb at the top for a
100 ft tower. I think ?perfectly plumb? is a visual thing and not a
mechanical strength thing when you are talking inches at the 100 ft top.
You can ?make it plumb? with tensioning the guys but honestly is taking a
few inches off the top necessarily helping the strength if it is stressing
the base to get there? Not sure.
Plumb has more importance on rotating masts I believe.
Ed N1UR
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