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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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Bavarian Pt 2/4 N DRG Class 72.1
Type and origin Builder Krauss Build date 1909 Total produced 2
Specifications Configuration: ​  • Whyte 4-4-0T Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 800 mm (2 ft 7+1⁄2 in) Driver dia. 1,250 mm (4 ft 1+1⁄4 in) Length: ​  • Over beams 9,065 mm (29 ft 9 in) Axle load 13.2 t (13.0 long tons; 14.6 short tons) Adhesive weight 26.2 t (25.8 long tons; 28.9 short tons) Service weight 39.0 t (38.4 long tons; 43.0 short tons) Fuel capacity 1,100 kg (2,400 lb) Water cap. 6 m3 (1,300 imp gal; 1,600 US gal) Boiler: ​ No. of heating tubes 155 Heating tube length 3,500 mm (11 ft 5+3⁄4 in) Boiler pressure 12 kgf/cm2 (1,180 kPa; 171 lbf/in2) Heating surface:  • Firebox 1.22 m2 (13.1 sq ft)  • Evaporative 73.56 m2 (791.8 sq ft) Cylinders 2 Cylinder size 350 mm (13+3⁄4 in) Piston stroke 500 mm (19+11⁄16 in)
Performance figures Maximum speed 65 km/h (40 mph)
Career Numbers K.Bay.Sts.E.: 6501–6502 DRG: 72 101 – 78 102 Retired 1928

See also

• Royal Bavarian State Railways
• List of Bavarian locomotives and railbuses

References

• Hütter, Ingo (2021). Die Dampflokomotiven der Baureihen 60 bis 91 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. p. 85. ISBN 978-3-946594-21-5.
• Weisbrod, Manfred; Petznik, Wolfgang (1981). Dampflokomotiven deutscher Eisenbahnen, Baureihe 97–99 (EFA 1.4) (in German) (2nd ed.). Düsseldorf: Alba. pp. 56–58. ISBN 3-87094-087-5.

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