I use hurricane (chainlink) fence top rail. Two sections of 10' each sleeved and bracketed against a gable so about one section is unsupported.....that is as far as I would go without guying myself. I have a 17' vertical on there and in high winds, it's nice and steady, but put a rotor on the end of that and the moment arm would add up fast.
You can get away with a lot if you guy it though, I've seen them up in the cities with four sections, but guyed at each joint.
My master plan keeps coming back to a proper roof tower with a shelf mounted rotor and thrust bearing...do it once and do it right I figure.
You can get away with a lot if you guy it though, I've seen them up in the cities with four sections, but guyed at each joint.
My master plan keeps coming back to a proper roof tower with a shelf mounted rotor and thrust bearing...do it once and do it right I figure.