for operation 1,020 mm / 40-3/16". Length over the buffers 67.0 cm / 26-3/8". Prototype: German State Railroad Company (DRG) class 18.4 express locomotive. Former Bavarian S 3/6. [...] BR 18.4 DRG Model: The locomotive is constructed of metal construction with applied plastic parts. It has a digital decoder, controlled high-efficiency propulsion, and a sound effects generator. The locomotive [...] can be operated with AC power, DC power, or with Märklin Delta, Märklin Digital, or Märklin Systems. 3 axles powered, 2 traction tires. The headlights will work in conventional operation and can be controlled...