Railway hopper car with longitudinal discharge openings

A railcar with longitudinal discharge openings is disclosed. The railcar includes an underframe (50), a pair of sidewall assemblies (30a, 30b) and a hopper formed between the sidewall assemblies. The underframe has a center sill (52) and a pair of side sills (54a, 54b). The center sill (52) disposed between the pair of side sills (54a, 54b) along a generally longitudinally axis of the railcar. The hopper includes a discharge opening adjacent to the center sill. A respective discharge door assembly disposed adjacent to each discharge opening to control flow of lading from each hopper. Each discharge door (90a, 90b) may hinge from the center sill (52) for movement between a first position and a second position relative to the discharge openings.