The Bavarian Pt 2/4 N was a steam locomotive with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn). It was developed in parallel with the Bavarian Pt 2/3 and for the same duties. Instead of a fixed carrying axle it was given a bogie. This change brought no advantage, so the more cost-effective Pt 2/3 was favoured. The two Pt 2/4 N engines were nevertheless taken over by the Reichsbahn, but were retired by 1928.
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Quick facts Bavarian Pt 2/4 N DRG Class 72.1, Type and origin ...
Bavarian Pt 2/4 N
DRG Class 72.1 |
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| Type and origin |
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| Builder | Krauss |
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| Build date | 1909 |
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| Total produced | 2 |
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| Specifications |
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Configuration:
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| • Whyte | 4-4-0T |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
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| Leading dia. | 800 mm (2 ft 7+1⁄2 in) |
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| Driver dia. | 1,250 mm (4 ft 1+1⁄4 in) |
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Length:
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| • Over beams | 9,065 mm (29 ft 9 in) |
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| Axle load | 13.2 t (13.0 long tons; 14.6 short tons) |
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| Adhesive weight | 26.2 t (25.8 long tons; 28.9 short tons) |
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| Service weight | 39.0 t (38.4 long tons; 43.0 short tons) |
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| Fuel capacity | 1,100 kg (2,400 lb) |
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| Water cap. | 6 m3 (1,300 imp gal; 1,600 US gal) |
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Boiler:
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| No. of heating tubes | 155 |
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| Heating tube length | 3,500 mm (11 ft 5+3⁄4 in) |
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| Boiler pressure | 12 kgf/cm2 (1,180 kPa; 171 lbf/in2) |
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| Heating surface: | |
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| • Firebox | 1.22 m2 (13.1 sq ft) |
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| • Evaporative | 73.56 m2 (791.8 sq ft) |
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| Cylinders | 2 |
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| Cylinder size | 350 mm (13+3⁄4 in) |
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| Piston stroke | 500 mm (19+11⁄16 in) |
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| Performance figures |
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| Maximum speed | 65 km/h (40 mph) |
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| Career |
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| Numbers | - K.Bay.Sts.E.: 6501–6502
- DRG: 72 101 – 78 102
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| Retired | 1928 |
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