Besides my Cubs, I also work on this bigger project. This is a 1917 Worthington cross-compound steam engine/air compressor. The base is approximately 16'x25' and the machine weights about 50 ton. The air comp portion will pump 3100 cu ft/min at 78 rpm. The restoration is nearly done. The machine was dissasembled into 12 major subassemblies for relocation,weighing 5-10 tons. More pictures of the assembly of this engine can be seen at http://cctsteam.50megs.com .