DH27000 was a series of three diesel-hydraulic locomotive

Locomotive

A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...

s bought by the Turkish State Railways

Turkish State Railways

The State Railways of the Turkish Republic or TCDD is the government owned, national railway carrier in the Republic of Turkey, headquartered in Ankara...

 from Krauss-Maffei

Krauss-Maffei

The Krauss-Maffei Wegmann GmbH & Co KG or simply Krauss-Maffei is an injection molding machine manufacturer and defence company based in Munich, Germany...

 in 1960 as a possible alternative to the American DE21500

TCDD DE21500

TCDD DE21500 were diesel-electric locomotive 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.-External links:*...

. Though performance was good, TCDD chose to buy the General Electric

General Electric

General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...

 models, possibly due to better financing model for the latter.

Background

In response to the 1955 visit to Yugoslavia, Greece and Turkey by one of the V200 prototypes, Turkish Railways - TCDD - ordered three Krauss Maffei ML2700 locomotives in 1960. As with the Yugoslavian ML2200 locomotives the Turkish locomotives had six axles, however the design was a departure from the V200 carbody style with the final product looking more like contemporary US road switcher locomotives with a European twist. The locomotives were symmetrical in design with two long hoods covering the engines, transmissions and auxiliaries and a single raised driving cab separating the two hoods in the middle of the locomotive. Each locomotive had two Maybach MD655 engines rated at 1,350 hp/994 kW, each coupled to a Voith L630rU transmission which was equipped for hydrodynamic braking. The locomotives were 19,670 mm long over buffers, weighed 111 tonnes in working order and were fitted with a Vapor train heating boiler manufactured by Hagenuk under licence. The maximum design speed of the locomotives was 100kmh. Krauss Maffei was asked to design the locomotives so that they could work effectively at high temperatures - up to 35c - and at altitudes up to 800m above sea level. Before delivery the locomotives were tested over the severely curved and graded Schwarzwaldbahn between Offenburg and Villingen, hauling freight trains normally operated by V200 locomotives. The locomotives left the Krauss Maffei works in München on 9 October 1961 and made their way to Ankara, Turkey, under their own power. TCDD numbered the locomotives DH27 001 - DH27 003, the corresponding Krauss Maffei works numbers being 18 702 - 18 704. TCDD started testing and training crews on the locomotives in December 1961 with entry into regular service being achieved in 1962. The locomotives worked freight and passenger trains radiating from Ankara until TCDD retired them in 1982.

External links

• Trains of Turkey page on DH27000