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The DRG Class 24 steam engines were German standard locomotives (Einheitslokomotiven) built for the Deutsche Reichsbahn between 1928 and 1939 to haul passenger trains.

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DRG Class 24
24 009
Type and origin Builder Schichau, Hanomag, Henschel, Krupp, Borsig Build date 1928 - 1939 Total produced 95
Specifications Configuration: ​  • Whyte 2-6-0  • German P 34.15 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 850 mm (33.46 in) Driver dia. 1,500 mm (59.06 in) Length: ​  • Over beams 16,955 mm (55 ft 8 in) Axle load 148.1 kN (33,300 lbf) Adhesive weight 443.3 kN (99,700 lbf) Service weight 562.9 kN (126,500 lbf) Tender type 3T 16 and 3T 17 (The DB's 24 061 had a 2`2 T26) Fuel capacity 6 t (5.9 long tons; 6.6 short tons) coal Water cap. 16 m2 (170 sq ft) Boiler pressure 137 N/cm2 (199 psi) Heating surface:  • Firebox 2.04 m2 (22.0 sq ft)  • Evaporative 104.48 m2 (1,124.6 sq ft) Superheater: ​  • Heating area 37.34 m2 (401.9 sq ft) Cylinder size 500 mm (19.69 in) Piston stroke 660 mm (25.98 in) Valve gear Walschaerts with Kuhn slides Loco brake automatic, single-chamber, Knorr compressed-air brakes, operating on coupled and carrying wheels from the front Auxiliary brake yes Parking brake yes
Performance figures Maximum speed 90 km/h (56 mph) Indicated power 920 PS (677 kW; 907 hp)
Career Retired 1972

History

These engines, nickname the 'prairie horse' (Steppenpferd) were developed specially for the long, flat routes in West and East Prussia. 95 examples were built by the firms of Schichau, Linke-Hofmann and others. The two units with operating numbers 24 069 and 24 070 were supplied by Borsig with a medium pressure boiler. These locos ran with a boiler overpressure of 245.1 N/cm² (355.5 psi), but were rebuilt in 1952.

The Deutsche Bundesbahn took over 38 locomotives and retired them by 1966. The last one with the DB was locomotive number 24 067, which was stabled in Rheydt and taken out of service there in August 1966. The engines were given operating numbers 24 001 to 24 095.

Engine numbers 24 002, 004, 009, 021 and 030 were left with the DR after the Second World War. They were all stabled in Jerichow shed in 1960 and their sphere of operations until 1968 was the branch line network of the Kleinbahn AG in Genthin. No. 24 009 was re-numbered in 1970 to 37 1009 and was used as a reserve breakdown engine in Güsten and Stendal. In 1972 it was sold to the West German railway magazine Eisenbahn-Kurier.

Thirty-four locomotive remained in Poland after the Second World War, where PKP classified them as Oi2. They served until the last one was withdrawn in 1976. One of the preserved locomotives in Germany, no. 24 083, had been in service in Poland.

The locomotives were equipped with 3 T 16 and 3 T 17 tenders.

Four Class 24 locomotives have been preserved: three in Germany (24 004, 24 009 and 24 083), and one in Poland (Oi2-29).

See also

• List of DRG locomotives and railbuses

Literature

• Klaus-Detlev Holzborn (2015): Der Sonderling 24 061. In: Eisenbahn-Magazin. Nr. 7, ISSN 0342-1902, S. 14.
• Wenzel, Hansjürgen (2012). Die Baureihe 24. Die kleinste Einheits-Schlepptenderlok (in German). Freiburg: EK-Verlag. ISBN 3-88255-124-0.
• Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 184–187. ISBN 3-87094-081-6.

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