BNB VIb Specifications Configuration: • Whyte 0-6-2T Gauge 1,435 mm (4 ft 8+ 1 ⁄2 in ) standard gauge Driver dia.36+ 5 ⁄8 in)Carrying wheel diameter33+ 1 ⁄8 in)Wheelbase : • Overall 4,800 mm (15 ft 9 in) Length: • Over beams 3+ 1 ⁄4 in)Adhesive weight 35.2 t (5.1 long tons; 5.7 short tons) Empty weight 32.3 t (31.8 long tons; 35.6 short tons) Service weight 44.6 t (43.9 long tons; 49.2 short tons) Fuel capacity 4.7 m3 (170 cu ft) of coal Water cap. 7.0 m3 (1,500 imp gal; 1,800 US gal) Boiler: No. of heating tubes 192 Boiler pressure 12 kgf/cm2 (1,180 kPa; 171 lbf/in2 ) Heating surface: • Firebox 1.66 m2 (17.9 sq ft) • Radiative 6.1 m2 (66 sq ft) • Tubes 79.6 m2 (857 sq ft) • Evaporative 85.7 m2 (922 sq ft) Cylinders 2 Cylinder size 16+ 9 ⁄16 in)Piston stroke 18+ 7 ⁄8 in)Loco brake Vacuum brake
Performance figures Maximum speed 45 km/h (28 mph) Indicated power 352 PS (259 kW; 347 hp)
Career Numbers BNB: 126, 127 kkStB: 265.01, 265.02 ČSD: 312.701, 312.702 DRB: 90 301, 90 302 Retired 1949
The BNB VIb (six-B) was a class of two branch line tank locomotives of the Bohemian Northern Railway Company (Böhmische Nordbahn-Gesellschaft ) for use on the Böhmisch Leipa -Steinschönau railway line. They later passed to the Imperial Austrian State Railways , who classified them as kkStB 265 .
The two locomotives were built in Prague in 1907 by the Erste Böhmisch-Mährische Maschinenfabrik (later part of ČKD ).
The locomotives spent their entire lives on their home line. In 1924 the Czechoslovakian State Railways (ČSD) grouped the engines into their ČSD Class 312.7 . After the Second World War the Deutsche Reichsbahn gave them the designation DR Class 90.3 .
On the introduction into service of new ČSD Class M 131.1 railcars, these locomotives were retired in 1949.
See also
References
Hütter, Ingo (2021). Die Dampflokomotiven der Baureihen 60 bis 91 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. pp. 462–463. ISBN 978-3-946594-21-5
External links
