Engine number are made of one or two letter indicating the broad type of the engine (electric, diesel electric, …) and a road number. The road number is on four or five digits. Block of numbers in sequence are assigned to the same type of engine, for this reason the first number of a sequence can be used as a proxy for an engine class number. For diesel engines, the numbers are often (but not always) indicative of the power in HP.
- DE24001: class DE24000 (2400 HP)
- DE18101: class DE18100 (1800 HP)
|E||Electric and EMU|
|DE||Dizel Electric (Diesel Electric)|
|DH||Dizel Hidrolic (Diesel Hydraulic)|
|HT||Hızlı Tren (High speed train)|
|MT||Motor Tren (DMU)|
|RM||Ray Motor (DMU)|
|DHM||Dizel Hidrolic Motor (DMU)|
|MR||Motor Römörk (Trailer)|
|MF||Motris Furgon (Self propelled van)|
MT, RM, MV and DHM are used somewhat randomly and sometime concurrently for the same equipment. They all refer to diesel railcars.