Originally Posted by mickjoebill
Any reason other than cost why a helicopter can't be used?
Any helicopter work would need to be from above the tip of the mast, giving the pilot a free air hover at some 1800ft. No doubt there are some longline/vertical reference pilots around who can achieve a stable hover looking down through the bubble window, but they are a cut above most of us in skill level
Lowering/picking up the worker onto a tiny platform, unknown winds (there would have to be a strict wind limit to such an operation, I guess), lousy visual reference: all in all let them carry on the way they're doing it, IMO!