Palatine R 4/4

The physically identical Palatine and Bavarian Class R 4/4 engines of the Royal Bavarian State Railways (Königlich Bayerische Staats-Eisenbahnen) were goods train tank locomotives with four coupled axles and no carrying axles. The first nine machines were built for the Palatinate Railway (Pfalzbahn) in 1913 and 1915 as the Palatine Class R 4, the remainder from 1918 to 1925 as Bavarian R 4/4 engines.

Bavarian, Palatine R 4/4
DRG Class 92.20
Number(s)DRG 92 2001–2049
Quantity51
ManufacturerKrauss
Year(s) of manufacture1913–1915 (Palatinate)
1918–1925 (Bavaria)
Retired1962
Wheel arrangement0-8-0T
Axle arrangementD n2t
Type
  • 2001–2040: Gt 44.16
  • 2041–2049: Gt 44.17
Track gauge1,435 mm (4 ft 8 1⁄2 in)
Length over buffers
  • 2001–2027: 10,840 mm (35 ft 6 3⁄4 in)
  • 2028–2049: 11,042 mm (36 ft 2 3⁄4 in)
Service weight66.9 t (65.8 long tons; 73.7 short tons)
Adhesive weight66.9 t (65.8 long tons; 73.7 short tons)
Axle load16.9 tonnes (16.6 long tons; 18.6 short tons)
Top speed45 km/h (28 mph)
Indicated Power419 kW (570 PS; 562 hp)
Driving wheel diameter1,216 mm (3 ft 11 7⁄8 in)
No. of cylinders2
Cylinder bore530 mm (20 7⁄8 in)
Piston stroke650 mm (25 9⁄16 in)
Boiler Overpressure12 kg/cm2 (1,180 kPa; 171 lbf/in2)
Grate area2.00 m2 (21.5 sq ft)
Evaporative heating area123.64 m2 (1,330.8 sq ft)
BrakesHand brakes on the front three axles (originally), Westinghouse compressed-air brakes

In 1925 seven Palatine R 4/4 with operating numbers 92 2001 to 92 2007 and all the Bavarian R 4/4 with operating numbers 92 2008 to 92 2049 were incorporated by the Deutsche Reichsbahn into their numbering plan as Class 92.20.

Retirement started in 1945 and was completed in 1962 with the last one, which was stabled in Nuremberg.

See also
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