Köf 11 (Class 332) exampleThese 8 prototype models all differed in gearing and engine type for comparison purposes: this led to a standard locomotives with a Mannheim works engine of type RHS 518A with a nominal power of 177 kilowatts and hydraulic transmission of type L213U from Voith, drive to the wheels was by chain drive - these were given the classification name: Köf 11