MTH Railking 30-1545-1 O Gauge 4-6-6-4 Imperial Challenger Western Maryland WM 1201 with PS2 - USED Slot Car Controller 1944 Version With Wilson Aftercooler

1944 Version With Wilson Aftercooler 25-C-400 Coal Tender

Separate wire grab irons are included for more realistic detail

4 V battery and USB-C fast charger

The popular ARRMA® easy-access modular design keeps maintenance simple with separate

MTH Railking 30-1545-1 O Gauge 4-6-6-4 Imperial Challenger Western Maryland WM 1201 with PS2 - USED Slot Car Controller 1944 Version With Wilson AftercoolerMTH Railking 30 1545 1 O Gauge 4 6 6 4 Imperial Challenger Western Maryland WM 1201 with PS2 USED The first Challengers were conceived in 1936 as fast freight engines to replace the Union Pacific's fleet of three cylinder 4 12 2 locomotives. With an extra center cylinder for added power and a top speed of 45 mph, the 4 12 2s had been successful freight engines when built in 1926. But a decade later they were considered slow and difficult to maintain.