BNR class HSG

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BNR class HSG

The Bengal Nagpur Railway (BNR) class HSG was a pair of Garratt steam locomotives built in 1925 to haul heavy freight up India’s ghats. They were the first successful Garratts used in India.

What they were
- Type: Garratt locomotive, 2-8-0+0-8-2
- Builder: Beyer, Peacock & Company (serials 6261 and 6262)
- Build date: 1925
- Gauge: 5 ft 6 in (1,676 mm)
- Total produced: 2
- Operators: Bengal Nagpur Railway; later Indian Railways

Numbers
- BN R numbers: 691 and 692
- Later Indian Railways numbers are reported differently in sources

Specifications (summary)
- Driver: 4 ft 8 in
- Boiler diameter: 7 ft 1 13/16 in
- Loco weight: 180.5 long tons
- Axle load: 18.75 long tons
- Cylinders: Four outside, 20 in × 26 in
- Fuel: Coal (8 long tons)
- Water: 5,000 imperial gallons
- Tractive effort: 56,825 lbf

Service and fate
- Route: Chakradharpur–Jharsuguda section, pulled heavy freight as a pair
- Era: Part of BNR’s experiments with heavy-haul Garratts; electrification made them obsolete
- Retirement: Last run 1969; scrapped that year
- Significance: First successful Garratts in India