Class of narrow gauge steam locomotives built for Darjeeling Himalayan Railway
DHR B Class |
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No. 792 hauling a school train, 2005 |
Type and origin |
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Power type | Steam |
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Builder | |
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Build date | 1889–1925 |
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Total produced | 34 |
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Specifications |
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Configuration:
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• Whyte | 0-4-0ST |
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• UIC | B n2t |
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Gauge | 2 ft (610 mm) |
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Driver dia. | 26 in (0.660 m) |
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Axle load | 7.75 long tons (7.87 t) |
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Loco weight | 14 long tons (14 t) |
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Firebox: | |
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• Grate area | 9 sq ft (0.84 m2) |
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Boiler pressure | 140 psi (0.97 MPa) |
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Heating surface | 316 sq ft (29.4 m2) |
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Superheater | None |
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Cylinders | Two, outside |
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Cylinder size | 11 in × 14 in (279 mm × 356 mm) |
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Career |
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Operators | |
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Class | B |
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Numbers | - DHR: 17–30, 32–36, 39–53
- All-India: 777–806
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Disposition | Some still in service |
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The DHR B Class is a class of 2 ft (610 mm) gauge 0-4-0ST saddle tank steam locomotives used on the Darjeeling Himalayan Railway (DHR) in West Bengal, India.