ScaleTrains 70038 HO Scale Museum Quality EMD SDL39 (Dulux) Wisconsin Central WC 590 DCC Sound Charger Add an optional Auxiliary Switch

Add an optional Auxiliary Switch for convenient operation

Traxxas Rustler drivers can drop-on a race favorite design to their bash vehicle of choice

Accessible with LEGACY ™ Train Master Control system

CHASSIS MOUNTED SERVO (CMS): The chassis-mounted servo provides maximum steering while maintaining scale looks

Traxxas 7513 LaTrax 1/18 Green Rally Body

ScaleTrains 70038 HO Scale Museum Quality EMD SDL39 (Dulux) Wisconsin Central WC 590 DCC Sound Charger Add an optional Auxiliary SwitchScaleTrains 70038 HO Scale Museum Quality EMD SDL39 (Dulux) Wisconsin Central WC 590 DCC Sound When EMD introduced its first road switcher models in 1952, there were two models. The first was the four axle GP7, where GP was short for General Purpose. The second model was the six axle SD7 and SD stood for Special Duty. The first Special Duty handling trains where raw tractive effort was more important than speed. This included working mountain grades,