These very unusual locomotives combined steam propusion with the diesel motor. On side of the cylinder worked as a diesel motor, while the other side was steam powered. The hot exhaust of the diesel was used to heat the water in the boiler.

 

USSR   

 

   Class Wheel Arrangement km/h hpi Year   
  
UK
  
Info Kitson-Still Locomotive 1'C1'     1926
  
USSR
  
Info TP-1 1'E1'     1939
Info V-8000 1'D1'     1939
Info V-8001 1'E1'     1948