The minimum radius to run this car is O-54 (recommended O-72) for 3-Rail

Model Number: 64388

Drive sprockets feature fine holes

This complete set makes it simple to convert

The model has the double A light function

Athearn 77877 HO Scale BNSF (Heritage I) Powered Diesel GP50 #3144 ProductID_12339838 The minimum radius to runThis is Athearn HO Scale Ready to Roll GP50 BNSF Heritage I #3144. Features: Fully assembled and ready for your layout Factory installed wire grab irons Factory installed Celcon handrails Super smooth drive train Nickel plated, blackened machined wheels McHenry scale knuckle spring couplers installed. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Athearn Model Number: 77877 Road Name: Burlington