DHR D Class

Specifications
Specifications
Configuration:;
• Whyte	0-4-0+0-4-0
• UIC	B'B' n4
Gauge	2 ft (610 mm)
Driver dia.	26 in (660 mm)
Superheater	None
Cylinders	Four, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Beyer, Peacock & Company

DHR D Class
DHR D Class
	Beyer-Peacock works photo
Power type
Type and origin
Power type	Steam
Builder	Beyer, Peacock & Company
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0+0-4-0
• UIC	B'B' n4
Gauge	2 ft (610 mm)
Driver dia.	26 in (660 mm)
Superheater	None
Cylinders	Four, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)
Operators
Career
Operators	Darjeeling Himalayan Railway; → Indian Railways;
Class	DHR D Class
Number in class	1
Numbers	31
Locale	West Bengal, India
First run	1911
Withdrawn	November 1954

The DHR D Class was a one-off 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.

Service history

The sole member of the class was built by Beyer, Peacock & Company, Manchester, England in 1910, and entered service the following year, as no. 31 in the DHR fleet. 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.

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

References

Notes

1 2 Hughes 1994, pp. 34, 37.
↑ Hughes 1994, p. 34.
1 2 Hughes 1994, p. 37.

Bibliography

Durrant, A E (1981). Garratt Locomotives of the World (rev. and enl. ed.). Newton Abbot, England: David & Charles. ISBN 0-7153-7641-1. OCLC 9326294.
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. OCLC 39496543.
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.