Prototype: Heavy freight steam locomotive class 52 with tender 2´2´T30. German Reichsbahn (DR). Black-gray basic color scheme. Without wind deflectors. With frost protection covering the air pump and covered lubrication lines. Leading wheelset with solid wheels. Locomotive operating number 52 1400. Operational condition around 1943/44. Model: With digital decoder mfx+ and extensive sound functions. Regulated high-performance drive with flywheel in the boiler. 5 axles powered. Traction tires. Locomotive and tender largely made of metal. Prepared for smoke set 7226. Direction-dependent two-light front signal that can be operated conventionally, digitally switchable smoke set. Cab lighting additionally digitally switchable. Lighting with maintenance-free warm white LEDs. Short coupling with kinematics between locomotive and tender. Kinematic-guided short coupling with NEM pocket at the rear of the tender and front of the locomotive, additionally front buffer height according to NEM. Minimum radius of 360 mm. Piston rod protection tubes, brake hoses, and screw coupling imitations are included. Length over buffers 26.4 cm. A matching heavy-duty car set is offered. This model is also available in DC version in the Trix H0 range.