TCDD DE21500

TCDD DE21500 were diesel-electric locomotives built for operations on Turkish State Railways. Forty General Electric U20C units with GE engines were built in 1964–65. Most of the locomotives are retired from service. The locomotive was a part of the State Railways' dieselisation of its network and was the first mainline diesel locomotive. Most of them were retired in the early 2000s, with a few seeing service into the later half of the decade.

DE21500
DE 21506 at Karabük in 2000.
Type and origin Power type Diesel-electric Builder General Electric Model GE U20C Build date 1957–1958 Total produced 40
Specifications Configuration: ​  • AAR C-C  • UIC Co'Co' Gauge 1,435 mm (4 ft 8 1⁄2 in) Length 17.2 m (56 ft 5 in) Loco weight 112 tonnes (110 long tons; 123 short tons) Prime mover GE FDL12 Engine type Four-stroke diesel Cylinders 12
Performance figures Power output 1,580 kW (2,120 hp)
Career Operators Turkish State Railways Numbers DE21501 – DE21540