This is a Bachmann 18651 N Scale Union Pacific® Ore Car

Radius: 1282mm (72in)

and this LGB model reproduces it accurately

and GE C44-9 locomotives perfectly

Model Number: 1926032

MTH 30-73340 O Gauge Alaska 33K Gallon Tank Car #890001 ProductID_11462591 This is a Bachmann 18651MTH 30 73340 O Gauge Alaska 33K Gallon Tank Car #890001 # Features Intricately Detailed Durable ABS Body # Metal Wheels and Axles # Diecast 4 Wheel Trucks # Operating Diecast Metal Couplers # Colorful, Attractive Paint Schemes # Separate Metal Handrails # Fast Angle Wheel Sets # Needle Point Axles # Unit Measures: 14 3 4" x 2 3 8" x 3 3 4" # Operates On O 31 Curves Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9)