Bavarian P 3/5 N

Bavarian P 3/5 N DRG Class 38.0
Type and origin Builder Maffei Build date 1905–1907 Total produced 36
Specifications Configuration: ​  • Whyte 4-6-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 850 mm (2 ft 9+1⁄2 in) Driver dia. 1,640 mm (5 ft 4+5⁄8 in) Length: ​  • Over beams 18,524 mm (60 ft 9+1⁄4 in) Axle load 15.3 t (15.1 long tons; 16.9 short tons) Adhesive weight 45.2 t (44.5 long tons; 49.8 short tons) Service weight 68.8 t (67.7 long tons; 75.8 short tons) Water cap. 18.2 m3 (4,000 imp gal; 4,800 US gal) Boiler pressure 15 kgf/cm2 (1.47 MPa; 213 lbf/in2) Heating surface: ​  • Firebox 2.60 m2 (28.0 sq ft)  • Evaporative 165.50 m2 (1,781.4 sq ft) Cylinders 4, compound High-pressure cylinder 340 mm (13+3⁄8 in) Low-pressure cylinder 570 mm (22+7⁄16 in) Piston stroke 640 mm (25+3⁄16 in)
Performance figures Maximum speed 90 km/h (56 mph)
Career Numbers K.Bay.Sts.E.: 3801–3836 DRG 38 001 – 38 013 Retired 1938

The 36 locomotives of Class P 3/5 N of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) were built between 1905 and 1907 by Maffei. The P 3/5 N evolved from the S 3/5 express train locomotive and had likewise a four-cylinder compound configuration. Compared with the S 3/5 the P 3/5 N had a smaller boiler but the same size cylinders. The P 3/5 N could haul a 350-ton train at 80 km/h on the level.

Six locomotives were destroyed in World War I; 17 more had to be handed over as reparations. The remaining 13 locomotives were taken over by the Deutsche Reichsbahn as Class 38.0.

The S 3/6 had already displaced these locomotives from the higher value passenger services.

Following positive experience with the Class P 3/5 H, the later DRG Class 38.4, in 1921, all P 3/5 N were converted from saturated to superheated steam operation between 1924 and 1925. The vehicles were nevertheless retired between 1932 and; the last locomotive in service was the 38 003.

The engines were equipped with Bavarian 2′2′ T 18,2 tenders.

See also

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

References

• Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 218–220. ISBN 3-87094-081-6.

External links

• Railways of Germany forum