Bavarian Pt 2/4 H

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.

Bavarian Pt 2/4 H
DRG Class 71.2
Number(s)
  • K.Bay.Sts.E.: 5001–5012
  • DRG: 71 201–212
Quantity12
ManufacturerKrauss
Year(s) of manufacture1906–1908
Retired1948
Wheel arrangement2-4-2T
Axle arrangement1′B1′ h2t
Track gauge1,435 mm (4 ft 8 1⁄2 in)
Length over buffers10,700 mm (35 ft 1 1⁄4 in)
Service weight60.0 t (59.1 long tons; 66.1 short tons)
Adhesive weight31.7 t (31.2 long tons; 34.9 short tons)
Axle load16.0 t (15.7 long tons; 17.6 short tons)
Top speed75 km/h (47 mph)
Driving wheel diameter1,546 mm (5 ft 7⁄8 in)
Leading wheel diameter1,006 mm (3 ft 3 5⁄8 in)
Trailing wheel diameter1,006 mm (3 ft 3 5⁄8 in)
No. of cylinders2
Cylinder bore490 mm (19 5⁄16 in)
Piston stroke540 mm (21 1⁄4 in)
Boiler Overpressure12 kgf/cm2 (1,180 kPa; 171 lbf/in2)
Grate area1.23 m2 (13.2 sq ft)
Superheater area19.60 m2 (211.0 sq ft)
Evaporative heating area67.90 m2 (730.9 sq ft)

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.

See also
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