TCDD DH27000

DH27000 was a series of three diesel-hydraulic locomotives bought by the Turkish State Railways from Krauss-Maffei in 1960 as a possible alternative to the American DE21500.

In response to the 1955 visit to Yugoslavia, Greece and Turkey by one of the V200 prototypes, Turkish Railways - TCDD - ordered three Krauss-Maffei ML 2700 locomotives in 1960.

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.

Krauss Maffei was asked to design the locomotives so that they could work effectively at high temperatures - up to 35°C - and at altitudes up to 800m above sea level.