The Württemberg D was a class of 14 locomotives of the Royal Württemberg State Railways (Königlich Württembergische Staats-Eisenbahnenen, K.W.St.E.)

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Quick Facts Württemberg D DRG 38.1 • PKP Ok102, Type and origin ...

Württemberg D DRG 38.1 • PKP Ok102
No. 422 in a works photograph
Type and origin Power type Steam Builder Maschinenfabrik Esslingen Build date 1898–1905 Total produced 14
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2′C n4v Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 850 mm (2 ft 9+1⁄2 in) Driver dia. 1,650 mm (5 ft 4.96062992 in) Length 16.92 m (55 ft 6+1⁄4 in) over buffers Axle load 15.0 tonnes (14.8 long tons; 16.5 short tons) Adhesive weight 44.8 tonnes (44.1 long tons; 49.4 short tons) Loco weight 64.4 tonnes (63.4 long tons; 71.0 short tons) Fuel type 2′2′ T Firebox: ​  • Grate area 2.3 m2 (25 sq ft) Boiler pressure 14 kgf/cm2 (1.37 MPa; 199 lbf/in2) Heating surface 162.0 m2 (1,744 sq ft) Cylinders Four: de Glehn compound High-pressure cylinder 380 mm × 560 mm (14+15⁄16 in × 22+1⁄16 in) Low-pressure cylinder 600 mm × 560 mm (23+5⁄8 in × 22+1⁄16 in)
Performance figures Maximum speed 90 km/h (56 mph)
Career Numbers K.W.St.E.: 421–424 DR: 38 101 to 38 108 PKP: Ok102-1 to Ok102-4 État: 230-985 and 230-986 Withdrawn DRG: 1924 PKP: État: 1930–34

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They were designed for the Ulm to Bretten via Stuttgart line. They were a four-cylinder de Glehn compound. They were capable of taking a train of 250 tonnes (250 long tons; 280 short tons) up a 1% (1 in 100) incline at a speed of 60 km/h (37 mph).

After the First World War, only eight locomotives went to the Deutsche Reichsbahn, who allocated them the numbers 38 101 to 38 108; however, they were not in active service, and were scrapped in 1924.

Four went to Poland, where the PKP classed them as Ok102. Two (426 and 429) went to France as reparations, and were allocated to the Chemins de fer de l'État, who renumbered them 230-985 and 230-986; they were little used, 230-986 was withdrawn circa 1930, and 230-985 was scrapped in 1934.^[1]

They were equipped with type 2′2′ T tenders.