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D5H/ỨC
B-B Diesel Hydraulic

D5H001

These Australian built locomotives were purchased second hand from Queensland Railways in Australia, where they were that systems DH class. Originally built for QR's 3 ft 6inch gauge they were regauged for VN's  metre gauge. Strangely they still carry the QR logo even after repainting in VN! Maybe no-one in Vietnam understands what it is? They were built from 1968 to 70 by Walkers Ltd at Maryborough in Queensland and are rated at 500 hp. In Queensland they were used mainly for shunting (switching) but in VN are employed in a much broader range of tasks. The first one (DH54) was ex Redbank Workshops 8/91, DH42&65 ex Redbank 10/93, DH6,8-9,15,33,39,44,57,58, ex Redbank 2/95, DH26 ex Redbank 6/95. They are sometimes seen coupled with Second D10H class (DFH21). They are used almost exclusively in the north and mainly on freight services on the Hà Nội - Lào Cai line.
 
13 locomotives were delivered between 1993 and 1995. All appear to be still in operation and are allocated to the Yên Viên Depot.

dh5002

Basic Data:

Class D5H
Model GH500 
Manufactured by Walkers Ltd, Maryborough, Queensland, Australia, for Queensland Railways
Year of manuafacture 1968-70 ('Demonstrator' delivered in '68, majority built 1970)
Years Delivered 1993-95 - ex 6,8,9,15,26,33,39,42,44,54,57,58,65 shipped 7-10-93 and 23-2-95
No. in Class 13
Numbers 025, 051-062
Weight 40 tonne
Maximum Speed 65 km/h
Axle load 10 tonne
Engine 6 Cylinder Caterpilar D355E diesel engine rated at 347 kW / 465 HP
Length 11.1 metres


ROAD NUMBERS

Road No.
QR Road No.
Year Built
Builder's No.
D5H-025
DH6
1968
588
D5H-051
DH8
1968
590
D5H-052
DH9
1968
591
D5H-053
DH15
1968
597
D5H-054
DH26
1969
608
D5H-055
DH33
1969
615
D5H-056
DH39
1969
621
D5H-057
DH42
1969
624
D5H-058
DH44
1969
626
D5H-059
DH54
1969
636
D5H-060
DH57
1970
644
D5H-061
DH58
1970
645
D5H-062
DH65
1970
652

Photo Gallery

Click on Thumbnail for fullsize image

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DH Plan
Above: Queensland Railways DH Class

In Australia all other members of the class have been out of service for a number of years, though some have been extensively rebuilt to operate on the privately run 2ft gauge sugar cane railways.

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. To differentiate between different locomotives with the same wheel arrangement, the initial road number was added, e.g. 231-400 and 231-500. Some northern locomotives of Chinese origin were also known by their Chinese classification. e.g. 141 also known as ZL.

Diesel locomotives have a completely dfferent clasification system.

All diesel classes start with the letter 'D'  (for diesel or possibly dau may for engine?) 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.

Before 1975 in the south  diesels used the French system , e.g. BB for  Bo-Bo type locomotive then the initial road number. e.g. BB901 class.

In the North there appears to have been a mixture of different systems.

There is also a semi-official system where locomotives are classified by their country of origin. e.g D5H is also known as 'Ừc' (Australian).

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Railways in Vietnam website © 2009-2013 David Gurnett
  Updated November 10, 2013
All images retain 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