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D11H/ "Rumani"
B-B Diesel Hydraulic


D11H001

These Romanian built locomotives were constructed from 1978 to 1980. The class originally numbered 58 but only 23 were in service in 2004. It has been suggested that they were originally painted blue and white, but photos of units in blue are extremely rare, so perhaps only early units were blue. Some units appear to have been re-engined using MTU diesel engines as the original engines wore out quicker than anticipated.. They have 'SMI MTU' painted in blue on the side just behind the No 1 driver's cab. Refurbished locomotives appear to include 307, 319, 331, 339, 346, 348
They were built at the 23rd August Works in Romania and were classified as their model LD-110-M-VN2. They are used as a mixed traffic locomotive. Their diesel engine is rated at 1100 hp


d11h002

DATA

Class
D11H
Gauge
1000 mm
Manufacturer
23rd August Works, Romania
Year of Manufacturer
1978-80
Model No.
LD-110-M-VN2
Wheel Arrangement
B-B
Type
Diesel Hydraulic
Number in Class
58
Road Numbers
301-358 (?)
Weight
56 tonnes
Length
14006 mm
Width
2870 mm
Height from rail
3608 mm
Engine
Maybach MB 820 DC 1100 hp
Miimum curve
79 metres
Maximum Speed
100 kph
Axle load
14 tonne

Image Gallery
Click on thumbnail to see fullsize image

Original Colour Scheme
blue D11H
The image purports to show an unidentified D11H in the original colour scheme. The photo is a bit strange. The gatekeeper doesn't appear to be wearing a uniform and a military vehicle is parked on the side of the road. As the first locomotives were delivered in 1978 this could be in the very early days of reunification.
D11Hthumb001D11Hthumb002D11Hthumb003

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Cab Shots

D11Hthumbcab001D11Hthumbcab002D11Hthumbcab003


Engine Shots

D11Henginethumb001D11Hthumbengine002






Locomotive Classifications

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?

Diesel locomotives have a completely dfferent clasification system.

All diesel classes start with the letter 'D'  (for diesel?) then a number which I believe is related to the locomotives  power output. The third character defines  Electric' (E) or hydraulic  (H).

e.g. D5H class = Diesel + 500 hp + hydraulic.

Again, what happens if two classes are the same I don't know.

I am still investigating pre 1975 classifications. Some are the same e.g. 141 steam class, and some are different e.g. 'BB' class instead of D9E.

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Railways in Vietnam website 2009-2013 David Gurnett
  Updated November 13, 2013
All images remain the copyright of their original owners and are reproduced purely for the purposes of research.

Please feel free to contact me at railwaysofvietnam@gmail.com