Her name is Ludmilla. She's soviet-build heavy diesel traction locomotive operated in the former East-Germany (DDR) with code name DR 132. Ludmilla is not fast but she's heavy, making her ideal for freight trains. More than 700 locomotives of this type were constructed. wikipedia

Ludmilla is also available in G-gauge model train by German brand PIKO. This web page is about heavily modified version of Ludmilla, with full custom control system.

Specifications:

• Length: 718 mm
• Weight: (original: 4,2kg)
• Power: ~100W (2x 50W)
• Voltage: 24V