[TowerTalk] unguyed heights for Rohn 65 etc.?

[RICHARD BOYD]

Anyone have an idea (or facts) how high I could go unguyed with Rohn 65, 
assuming a single 48' boom monobander for 20, or 15, or 10 (plus appropriate 
rotator, and I'll have the yagi right above the tower, shortest mast 
possible within reason)?  I am considering my options on telephone poles, 
which I have available, or guyed towers, but the idea of husky tower, 
unguyed, came up in a discussion a couple days ago.

I also have some Rohn C and some Dura 20, which are 24" face and 20" face, 
respectively, both with 20' sections, and wonder the same thing for them, if 
anyone knows about them, though I figure there's more chance someone will 
know about Rohn 65.

Okay, let me toss out another possibility:  Rohn 80 (I know it comes in 
various sub-models, some 40" face, some 44" face and there may be other 
differences, but assume the basic or the typical one).

73 - Rich, KE3Q