Railcar with discharge control system

A method of discharging lading from a railway car defined in part by a center sill, comprising:

• moving a plank, slidably engaged with the center sill, relative to a generally longitudinally axis of the railway car;
• pivoting a discharge door assembly, defined in part by a plurality of secondary linkages, between a first closed position by rotating at least two of the secondary linkages relative to the center sill based on movement of the plank and a second, open position by rotating the at least two secondary linkages based on the movement of the plank;
• and
• adjusting the position of the discharge door assembly relative to a discharge opening wherein adjusting the position of the discharge door assembly further comprises rotating a turnbuckle forming a part of a secondary linkages.

A method of discharging lading from a railway car having a railway car underframe defined in part by a center sill, comprising:

• moving a linkage attached to and supported by the center sill, extending along a generally longitudinally axis of the railway car;
• rotating respective arms coupled with each discharge door assembly in three dimensions relative to the center sill;
• and
• pivoting each discharge door assembly hinged to the center sill between a first, closed position and a second, open position in response to the movement of the respective arms.

A method of forming a door assembly for a discharge control system of a railway car, comprising:

• forming the door assembly with a plurality of hinge assemblies extending along one longitudinal edge of the door assembly;
• attaching a supporting structure along a longitudinal edge of the door assembly opposite from the longitudinal edge with the plurality of hinges;
• and
• forming a longitudinal recess along the longitudinal edge of the door assembly opposite from the longitudinal edge with the plurality of hinges whereby the longitudinal recess and the supporting structures are operable to help seal a respective longitudinal discharge opening the supporting structure from the group consisting of an angle, an I-beam, or a Z-beam.