Looks like they just have "built-in" gin or or is jin pole capability.
Seems like you could do the same thing with a triangular section tower.
Looks neat, though. Pretty husky too...however...

I wonder about the fact that there is no diagonal bracing. The horiz
bracing is quite heavy looking, but it looks like one giant parallelogram to
me. What would 'ole Octave Chanute say?

--
Steve N, K,9;d, c. i My email has no u's.

"Minnie Bannister" wrote in message
...
Anybody know anything about this one?

http://www.onemantowers.com/index.html

Alan AB2OS