Yesterday I saw a train leaving the BNSF yard in KC, It was going west through Newton KS. Just behind the engine, were two flat cars of mining equipment. One had the frame & chassis for a big CAT ore hauler truck, and on the other one was a tandem V-12! It was two CAT 3512's joined at the crankshaft, on one long skid, making a V-24?. On the east end of one of them was some HUGE hydraulic stuff, I guess for the big ore hauler they were going to put together someplace. I'm guessing a single 3512 would be about 1500HP, so maybe 3,000 total for the Siamese twin?