These 1200hp model DEV-736 Czech built locomotives are used for a wide variety of uses, both passenger and freight. Some 40 were delivered between 1985 and 1990.They are numbered from 621-660. They appear to have been painted in two colour schemes red with yellow lining and the lining changed to white (to match the D18E and D13E classes?). There has also been a change in the pilot from one made of piping to a solid metal one. Some locomotives have the cab side numbers in the middle and some closer to the bottom of the cab as well. Also some locomotives have the DSVN logo stencilled on the long hood side.  The small photo (at the bottom of the gallery) of D12E-632 below seems to show a freshly repainted locomotive in bright red with white lining at the front and on the long hood but not on the cab or short hood as well as a black solid metal pilot rather than red. A new simplified style? A couple of the machines are depicted in the gallery with an unidentified blue and white logo on the long hood as well (626, 628 and 638).Several very similar locomotives were imported into Cambodia painted in a pale blue and yellow colour scheme.

Class	D12E
Model	DEV-736 (export model)
Manufacturer	CKD (Ceskomoravska-Kolben-Danek) Prague, Czech Republic
Year Built	1985 - 90 (1986-91)
Gauge	1000 mm
Engine	900 kw/1200 hp CKD
Number in Class	40
Road Numbers	621-660
Weight	56 tonne
Maximum Speed	80 kph
Axle Load	14 tonne
Minimum Radius	75 metres
Length over couplers	13305 mm
Length over pilots	12200 mm
Width	2754 mm
Height from rail	3850 mm

Steam Locomotives generally used the traditional French classification system. A steam locomotive with a 2-8-2 wheel arrangement is classified as 141 class, a locomotive with  4-6-2 wheel arrangement is classified as 231 class etc. Pretty straight forward, except what they did  if  two classes had a 2-8-2 wheel arrangement I'm not sure. It didn't happen so wasn't a problem?