Helicopter lifts are a lot more fun, but expensive. Last time (15 years ago)I was involved with a Helicopter lift we replaced 40 RTU’s in an afternoon. That was just removing & installing the new curbs/units. It was very fast paced. Here is the guys we use for Helicopter lifts
That crane is likely selected more for reach than ultimate load in this case.
Helicopter lift usually makes sense where you are replacing most of the units on a larger building like a school, and you can have everything off line, disconnected and ready to move fast. It avoids the challenges of moving the crane and trailers all around the building to reach everything, or going with a much more expensive crane for longer reaches and fewer moves.
And I wouldn’t be surprised if Tim’s been involved in crane lifts with cranes that could pick up this crane.
The units were 10 ton. The older unit was not too terribly old, probably at its half life expectancy. Equipment is only really designed to last 15 years anymore. It used to be 30 years. The efficiency on it was obviously greatly reduced due to many deficiencies, however it was extremely efficient in the past few months. We were saving half the electricity cost by having only 1 good compressor.
