Prototype class 575 former bavarian class g 55 heavy freight steam locomotive with a type 22 t21 8 tender design version from the fourth production series german federal railroad db blackred basic paint scheme road number 57 584 the locomotive looks as it did around 1949 model the locomotive has an mfx digital decoder it also has controlled high efficiency propulsion with a flywheel mounted in the boiler 5 axles powered traction tires the locomotive and tender are constructed