NS Southbound Local Freight Train A21 ( Birmingham to Wilton, Al. Turn ) passing through Bessemer, Al. on AGS #1 Main with PR43C 4011 leading a pair of SD40-2s. The PR43C is built by Progress Rail with a 4,300 Horsepower Caterpillar Engine, a C17 & a C175 Caterpillar Engine combining for 4,300 Horsepower |