title


homebuttonaboutbutton
locomotivesbutton
coachesbutton
freightbutton
historybutton
modelsbutton
militarybutton
railcarsbutton
structuresbutton
stationsbutton
gallerybutton
ticketsstampsbutton linksbutton

vnflagausflag


DD11 2
B-B Diesel Hydraulic

DD11001

Above: DD11 class leader DD11 1 in Japanese service.

This Japanese diesel hydraulic switcher/shunter was a gift from Japanese Unions to Vietnam Railways in 1977. The locomotive was the second of 3 locomotives numbered 1-3. A further 6 numbered 4-9 were built with some differences in 1957. The locomotive was built in 1954 as part of Japans postwar dieselization program. Whether the locomotive was ever actually used in Vietnam and if so for how long is not known. The only photos in Vietnam show it rusting away. It seems a rather sad way to treat a gift. If Vietnam ever gets a railway museum it would make an excellent exhibit but would need a lot of restoration work.That's assuming it still exists of course.


DD1102
Above: DD11 2 in Japanese service. This is the machine that was donated to Vietnam.

DD11

Above: This is how it looked several years ago. Whether it still exists is not known.

DATA

Model/Class
DD11
Country of manufacture
Japan
Gauge
1000 mm (would have been converted from Japanese 3 ft 6 gauge)
Road Number
DD11 2/ DSVN No. not known.
Length
9550 mm
Width
2540 mm
Height
3760 mm
Weight
34t (?)
Wheel Arrangement
B-B
Engine
2 X 160hp DMH17B
Transmission
TC2 DF115 x 2
Output
Continuous rated output 320 PS/1500 RPM

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 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.

kompozer
Created with Kompozer
the Open Source Web Designer

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