DongFeng 'East Wind' diesel-electric locomotive has been in production since 1969 and is still produced in various versions. It is the most common locomotive in China and is used for both passenger and freight services.
It took seven years to build all 108 locomotives of this type. Due to unstable technique in the production of early-built DF4 locomotives, malfunctions of mechanic and electric parts occurred frequently during the operation, especially the diesel engine. Thus, most DF4 locomotives were taken out of service for maintenance, and railroad engineers from Fengtai Locomotive Depot sarcastically joked that the DF4 "can't make it from Dongdan to Xisi". (Wiki notes on Chinese locomotives)
Total produced 847
Length 19.9 m
Weight 138 tonnes
Engine type V16 diesel
Generator TQFR-3000
Transmission Electric (AC-DC)
Maximum speed 120 km/h
Power output 2650 kW
