Quote Originally Posted by IntheGroove View Post
The foundation for the crane was probably already there from when the tower was erected...
maybe a small one to anchor a draw works winch. Towers like that one once the 4 lattice legs merged into a single would have been built piece meal with a single climbing jib going up 1 leg of the lattice structure.
A helicopter pilot friend of mine goes all over the world for the company he works for dong lifts such as erecting and the deconstruction or relocating communications towers, or lifting repair parts for wind turbines, a lot faster safer and cheaper than erecting a crane of that size for a short term job.