NS Southbound Local Freight Train A50 ( Birmingham to Attalla, Al. Turn ) getting ready to head back to Norris Yard in Irondale, Al. with 54 cars with a pair of PR43C's sandwiching a GP50 for power. The PR43C is built by Progress Rail Services with a 4,300 Horsepower Caterpillar Engine, a 3,600 Horsepower C175 & a 700 Horsepower C17 Caterpillar Engine |