Rick Rowlands standing next to the 150,000#, 20' diameter flywheel. Behind him is the 8' shaft governor, which varied the cutoff on the HP inlet valve. The flywheel splits in half near Rick's left knee. A pair of dogbone shaped shrink links fit into the castings at this point to hold the rims together. To remove, each link must be heated to 500 degrees and pulled our with a piece of heavy equipment.