Originally Posted by
SuperF
Looking at the size of those structures, they would easily get up to 8 tn. The poles would be a good 3tn each, and all the joining structure would be close to 2 tn.
While there are very few machines that could do them in one go, there would be nothing stopping them from flying in the poles individually, and then hanging the supporting structure.
Doing it that way, would probably take 4-5 times as long, maybe longer, and possibly cost more! Also people up the tower while hanging the cross arms, not sure if the rules in the UK would let you do it...
You've pretty much got it, down to time, efficiency, easier process and men up the poles.
Task specialists are allowed up the poles as long as your procedures and risk assessments allow it. You just need a pretty good HESLO 4 longline pilot and there's not many of those about in the UK🤔