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Bavarian Pt 2/4 H
DRG Class 71.2

Type and origin
Builder	Krauss
Build date	1906–1908
Total produced	12

Specifications
Configuration:
• Whyte	2-4-2 T
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	1,006 mm (3 ft 3+5⁄8 in)
Driver dia.	1,546 mm (5 ft 7⁄8 in)
Trailing dia.	1,006 mm (3 ft 3+5⁄8 in)
Length:
• Over beams	10,700 mm (35 ft 1+1⁄4 in)
Axle load	16.0 t (15.7 long tons; 17.6 short tons)
Adhesive weight	31.7 t (31.2 long tons; 34.9 short tons)
Service weight	60.0 t (59.1 long tons; 66.1 short tons)
Boiler pressure	12 kgf/cm (1,180 kPa; 171 lbf/in)
Heating surface:
• Firebox	1.23 m (13.2 sq ft)
• Evaporative	67.90 m (730.9 sq ft)
Superheater:
• Heating area	19.60 m (211.0 sq ft)
Cylinders	2
Cylinder size	490 mm (19+5⁄16 in)
Piston stroke	540 mm (21+1⁄4 in)

Performance figures
Maximum speed	75 km/h (47 mph)

Career
Numbers	K.Bay.Sts.E.: 5001–5012 DRG: 71 201–212
Retired	1948

The Pt 2/4 H was a class of steam locomotive built by the firm of Krauss for the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) between 1906 and 1908. They were used on routes in Bavaria to haul light, fast passenger trains.

The vehicles all had a gravity-fed firebox with a hopper over the grate for one-man operation. It was possible to access the train directly from the locomotive via doors in the front and rear walls and gangways. On several engines, the Reichsbahn later made modifications to the driver's cab.

The Deutsche Reichsbahn took all engines of this type over. The last Pt 2/4 H locomotive was retired in 1948.

References

Hütter, Ingo (2021). Die Dampflokomotiven der Baureihen 60 bis 91 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. pp. 71–72. ISBN 978-3-946594-21-5.
Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1978). Dampflokomotiven deutscher Eisenbahnen, Baureihe 60–96 (EFA 1.3) (in German) (4th ed.). Düsseldorf: Alba. pp. 48–50. ISBN 3-87094-083-2.

v t e Classes of Bavarian locomotive and railcars
Early locomotives	Adler Jupiter and Juno Vesta and Venus Vulkan and Mars Merkur and Diana A I A II A III A IV A V B I B II B III B IV B V B V (artic) C I C II
Passenger and express train locomotives	B VI B VII B VIII B IX (old) B IX B X B XI Zw B XI Vbd C V AA I S 2/5 (Vauclain) S 2/5 S 2/6 S 3/5 N S 3/5 H S 3/6 P 2/4 P 3/5 N P 3/5 H
Goods train locomotives	C II C III C IV Zw C IV Vbd C VI E I E I (Vauclain) BB I G 3/4 N G 3/4 H G 4/5 N G 4/5 H G 5/5
Tank locomotives	D I D II D II (old) D III D IV D V D IX D XII Pt 2/3 Pt 2/4 N Pt 2/4 H Pt 2/5 N Pt 2/5H Pt 3/6 Gt 2×4/4 R 3/3 R 4/4
Branch line locomotives	D VI D VII D VIII D X D XI BB II PtL 2/2 (Maffei) PtL 2/2 (Krauss) PtL 3/3 PtL 3/4 PtzL 3/4 GtL 4/4 (GtL 4/5 - DRG 98.10) (GtL 4/5 - DRG 98.11)
Narrow gauge locomotives	LE Pts 3/4 Gts 4/4 Gts 2x3/3
Electric locomotives	ES 1 EP 1 EP 2 EP 3 EP 4 EP 5 EG 1 EG 2 EG 3 (EG 4) (EG 5)
Railbuses	Krauss railmotor MCi MBCi MCCi MBCL MPL D4ieIT (D4ieIT variant - DRG ET 85)
Bavarian Ostbahn locomotives	A 1 – A 12 A 13 – A 24 A 1 – A 2 B 1 – B 66 B 67 – B 78 B 79 – B 90 B 91 – B 96 B 97 – B 109 C 1 – C 12 C 13 – C 64 D 1 – D 12 D 13 – D 14
Royal Bavarian State Railways

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References