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This article is about the locomotive. For other uses, see T37.

Prussian T 37
DRG Class 99.40

Type and origin
Builder	Sächsische Maschinenfabrik (2) Orenstein & Koppel (16) Maschinenfabrik Christian Hagans (2)
Build date	1904–1912
Total produced	20

Specifications
Configuration:
• Whyte	0-8-0 T
• German	K 44.7
Gauge	785 mm (2 ft 6+29⁄32 in)
Driver dia.	810 millimetres (2 ft 7+7⁄8 in)
Length:
• Over beams	8,520 mm (27 ft 11+1⁄2 in)
Adhesive weight	27.9 t
Service weight	27.9 tonnes (27.5 long tons; 30.8 short tons)
Fuel capacity	Coal: 1.3 tonnes (1.28 long tons; 1.43 short tons)
Water cap.	2,500 litres (550 imp gal; 660 US gal)
Boiler pressure	13 bar (1.30 MPa; 189 psi)
Heating surface:
• Firebox	1.00 m (10.8 sq ft)
• Evaporative	49.21 m (529.7 sq ft)
Cylinders	2
Cylinder size	340 mm (13+3⁄8 in)
Piston stroke	400 mm (15+3⁄4 in)
Valve gear	Walschaerts (Heusinger)

Performance figures
Maximum speed	25 km/h (16 mph)

Career
Numbers	Oberschlesische Schmalspurbahnen: 9–24 KPEV: Kattowitz 111–130 DRG: 99 401 – 99 408
Retired	1939

The Prussian T 37s were German steam locomotives operated by the Prussian state railways. They replaced the smaller 0-6-0 T locomotives on the railway line between Beuthen and Kattowitz. In all 20 engines were supplied to Prussia, of which eight were taken over by the Reichsbahn and given numbers 99 401 to 99 408. They were all withdrawn by 1939 and scrapped.

These locomotives were equipped with Klien-Lindner axles at each end. They had an outside frame and the third wheelset was driven. They also had an outside Walschaerts valve gear. The engines could carry 1.3 tonnes of coal and 2.5 m of water. The coal tank was located behind the driver's cab.

References

Weisbrod, Manfred; Petznik, Wolfgang (1981). Dampflokomotiven deutscher Eisenbahnen, Baureihe 97–99 (EFA 1.4) (in German) (2nd ed.). Düsseldorf: Alba. pp. 148–150. ISBN 3-87094-087-5.

v t e Classes of Prussian locomotive and railcars
Express train locomotives	S 1 S 2 S 3 S 4 S 5.1 S 5.2 S 6 S 7 S 8 S 9 (Exp.) S 9 S 10 S 10.1 S 10.2 S 11
Passenger and express train locomotives	P 1 P 2 P 3 P 3.1 P 3.2 P 4 P 4.1 P 4.2 P 6 P 7 P 8 P 10
Goods train locomotives	G 1 G 2 G 3 G 4.1 G 4.2 G 4.3 G 5.1 G 5.2 G 5.3 G 5.4 G 5.5 G 7.1 G 7.2 G 7.3 G 8 G 8.1 G 8.2 G 8.3 G 9 (Mallet) G 9 G 10 G 12 (CFOA type) G 12 G 12.1
Tank locomotives	T 0 T 1 T 2 T 2/T 4 T 2.1 T 2/T 3/T 4 T 3 T 4 T 4.1 T 4.2 T 4.3 T 5.1 T 5.2 T 6 T 7 T 8 T 9 Elberfeld T 9 Langenschwalbach T 9.1 T 9.2 T 9.3 T 10 T 11 T 12 T 13 Hagans T 13.1 T 14 T 14.1 T 14 (Exp.) T 15 T 16 (Exp.) T 16 T 16.1 T 18 T 20 T 26 T 28
Narrow gauge locomotives	T 31 T 32 T 33 T 34 T 35 T 36 T 37 T 38 T 39 T 40
Electric locomotives	to follow
Railbuses	to follow
Prussian state railways

Categories:

See also

References