The block is lifted off the table by a large overhead crane (it runs on tracks mounted near the ceiling and can move 4 directions) and lowered onto a pallet jack. Then it was taken to a larger empty work area nearby. The red lifting straps are readjusted so when the block is lifted it now stands vertically, then the whole crane is moved over and simultaneously the cable lowered so the jacket comes to rest “upside-down”. Actually it is now in its original field orientation. The flipped block is put back on the pallet jack, wheeled over to the work desk, the straps readjusted a final time and the block lifted back onto the table. This work is always done with others helping for safety reasons.
Once the block was on my work table I was able to refind the holes I drilled through days ago and “connect the dots” with a red marker pen. Now I know exactly where the skull is positioned inside. Now the manual labor of pulling the jacket off begins!
Dave Hone's Archosaur Musings 
Go hard hatted Mark!
Apart from crane operation has Mark been helping with the Gorgo Darren?
He just helped with the flip