BNR class HSG

The Bengal Nagpur Railway class HSG was a class of two 2-8-0+0-8-2 Garratt locomotives.

BNR class HSG
Type and origin Power type Steam Builder Beyer, Peacock & Company Serial number 6261–6262 Build date 1925 Total produced 2
Specifications Configuration: ​  • Whyte 2-8-0+0-8-2 Gauge 5 ft 6 in (1,676 mm) Driver dia. 4 ft 8 in (1.422 m) Axle load 18.75 long tons (19.05 t) Adhesive weight 148.5 long tons (150.9 t) Loco weight 180.5 long tons (183.4 t) Fuel type Coal Fuel capacity 8 long tons (8.1 t) Water cap. 5,000 imp gal (23,000 L; 6,000 US gal) Firebox: ​  • Grate area 263 sq ft (24.4 m2) Boiler pressure 180 psi (1.24 MPa) Heating surface 2,954 sq ft (274.4 m2) Superheater: ​  • Heating area 642 sq ft (59.6 m2) Cylinders Four, outside Cylinder size 20 in × 26 in (508 mm × 660 mm)
Performance figures Tractive effort 56,825 lbf (252.77 kN)
Career Operators Bengal Nagpur Railway →Indian Railways Numbers BNR: 691–692 →IR: 38681–38692 Locale Eastern Railway zone South Eastern Railway zone Last run 1969 Withdrawn 1969 Scrapped 1969 Disposition Both scrapped

After North Western State Railway's GAS class, the Bengal Nagpur Railway conducted similar experiments for pulling heavier trains up the ghats with successful results. Its parts were similar to BESA heavy goods 2-8-0s, the class HG.^[1] They worked on the Chakradharpur-Jharsuguda section coupled to each other. After electrification they became obsolete. In the end, they were stationed at Kharagpur workshops. They were the first successful class of Garratts.^[2]

Technical specifications

Boiler	7 ft 1+13⁄16 in (2.18 m) diameter
Maximum Train Load	2,550 long tons (2,590 t)