Prototype: German State Railroad Company (DRG), Bavarian Group Administration, class Gt 2 x 4/4 heavy freight locomotive, former Bavarian class. Mallet design articulated locomotive with high and low pressure compound cylinder groups. 2nd production run starting in 1923.
Model: The locomotive has an articulated frame to enable the unit to negotiate sharp curves. All 8 coupled axles on both groups of driving wheels are powered. The headlights are LEDs. Minimum radius for operation 145 mm / 5-11/16". Length over the buffers 81 mm / 3-3/16".