DHR B Class 778

Specifications
Specifications
Configuration:;
• Whyte	0-4-0ST
• UIC	B n2t
Gauge	2 ft (610 mm)
Driver dia.	26 in (0.660 m)
Axle load	7.75 long tons (7.87 t)
Loco weight	14 long tons (14 t)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	140 psi (0.97 MPa)
Heating surface	316 sq ft (29.4 m2)
Superheater	None
Cylinders	Two, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Sharp, Stewart & Co.
Serial number	3518
Website	www.darjeelingtank.org.uk

Darjeeling Himalayan Railway 19
(All-India No. 778)
Darjeeling Himalayan Railway 19; (All-India No. 778)
	No. 778 hauling a train on the Ffestiniog Railway
Power type
Type and origin
Power type	Steam
Builder	Sharp, Stewart & Co.
Serial number	3518
Website	www.darjeelingtank.org.uk
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0ST
• UIC	B n2t
Gauge	2 ft (610 mm)
Driver dia.	26 in (0.660 m)
Axle load	7.75 long tons (7.87 t)
Loco weight	14 long tons (14 t)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	140 psi (0.97 MPa)
Heating surface	316 sq ft (29.4 m2)
Superheater	None
Cylinders	Two, outside
Cylinder size	11 in × 14 in (279 mm × 356 mm)
Tractive effort
Performance figures
Tractive effort	7,750 lbf (34.47 kN)
Operators
Career
Operators	Darjeeling Himalayan Railway; → Indian Railways;
Class	DHR B Class
Number in class	3rd of 34
Numbers	No. 19 (1889‒1957); No. 778 (1957‒);
Nicknames	Little Blue
Locale	Statfold Barn Railway
Withdrawn	1960
Current owner	Darjeeling Tank Locomotive Trust
Disposition	Under renovation (awaiting new boiler)

Adrian Shooter (driver, right) with Jeremy Davey (fireman, left) onboard locomotive No.19 at Beeches Light Railway in 2019.

DHR19 in the station at Leighton Buzzard.

DHR 778 (originally number 19) is a narrow-gauge steam locomotive, that was built in 1889 for the Darjeeling Himalayan Railway. It is preserved in the United Kingdom, and is the only DHR locomotive outside of India. The engine has the oldest locomotive boiler still in use anywhere in the world.^[1]

^ "Catch the Darjeeling B at Launceston Steam Railway before the end of the season". Cornish & Devon Post. 12 September 2019. Retrieved 25 July 2023. x-ray inspection of the original boiler showed that there was virtually no wastage. No.19 now has the distinction of having the oldest locomotive boiler in use anywhere in the world.

[cdp-2019-1] "Catch the Darjeeling B at Launceston Steam Railway before the end of the season". Cornish & Devon Post. 12 September 2019. Retrieved 25 July 2023. x-ray inspection of the original boiler showed that there was virtually no wastage. No.19 now has the distinction of having the oldest locomotive boiler in use anywhere in the world.

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