DHR D Class

DHR D Class
Beyer-Peacock works photo
Type and origin
Power type	Steam
Builder	Beyer, Peacock and Company
Specifications
Configuration	0-4-0+0-4-0
UIC classification	B'B' n4
Gauge	2 ft (610 mm)
Driver diameter	26 in (0.660 m)
Superheater type	None
Cylinders	Four, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)
Career
Operator(s)	Darjeeling Himalayan Railway → Indian Railways
Class	DHR D Class
Number in class	1
Number(s)	31
Locale	West Bengal, India
First run	1911
Withdrawn	November 1954 (1954-11)
^[1]

The DHR D Class was a 2 ft (610 mm) gauge 0-4-0+0-4-0 Garratt-type articulated steam locomotive used on the Darjeeling Himalayan Railway (DHR) in West Bengal, India.^[2]

Service history

The sole member of the class was built by Beyer, Peacock and Company in 1910, and entered service the following year, as no. 31 in the DHR fleet.^[1] Its basic dimensions were designed to be roughly equivalent to those of two of the DHR's existing B Class 0-4-0 ST engines, with the intention that it would produce approximately double the power of those engines. However, in practice it was only able to haul 65% more load than a single B Class unit.^[3]

Although the DHR did not acquire any further articulated locomotives, no. 31 remained in service until November 1954.^[3]

References

Notes

↑ 1.0 1.1 Hughes 1994, pp. 34, 37.
↑ Hughes 1994, p. 34.
↑ 3.0 3.1 Hughes 1994, p. 37.

Bibliography

Durrant, A E (1981). Garratt Locomotives of the World (rev. and enl. ed.). Newton Abbot, Devon, UK; North Pomfret, Vt, USA: David & Charles. ISBN 0715376411.
Hills, Richard L (2000). The Origins of the Garratt Locomotive. East Harling, Norfolk, UK: Plateway Press. ISBN 1871980437.
Hughes, Hugh (1976). Steam in India. Truro, Cornwall: D. Bradford Barton Ltd. ISBN 0851532586.
Hughes, Hugh (1994). Indian Locomotives: Part 3 – Narrow Gauge 1863–1940. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-0-3.
Manning, Peter (2013). The Anatomy of the Darjeeling Garratt and the Engine it tried to Replace: the DHR Class "B" saddle tank. Coromandel Valley, South Australia: Peter Manning Design & Drafting. ISBN 9780980621228.