I thought it would be fun to do a little article about a very rare locomotive called the SD45X
It's essentially a super sd45 with the same 20 cylinder motor but given a boost to an insane 4,200 horsepower and was built from 1970-71.
About 7 of them were made, all of them went to the Southern Pacific. Note that it took an extra fan and even more powerful radiators to keep the prime mover from cooking itself.
All 7 are believe to have been scrapped...


