Prussian T 14.1

The Prussian Class T 14.1 was a German 2-8-2T, goods train, tank locomotive operated by the Prussian state railways and the Royal Württemberg State Railways. They were later incorporated by the Deutsche Reichsbahn into the DRG renumbering plan for steam locomotives as DRG Class 93.5–12.

Prussian T 14.1 , Württemberg T 14
DRG Class 93.5–12
DB Class 093, DR Class 93.1–6
Number(s)DRG 93 501–1261
Year(s) of manufacture1918–1924
Wheel arrangement2-8-2T
Axle arrangement1′D1′ t
Track gauge1,435 mm (4 ft 8 12 in)
Length over buffers14,500 mm (47 ft 6 34 in)
Service weight101.0 tonnes (99.4 long tons; 111.3 short tons)
Adhesive weight67.9 tonnes (66.8 long tons; 74.8 short tons)
Axle load17.9 tonnes (17.6 long tons; 19.7 short tons)
Top speed70 km/h (43 mph)
Indicated Power734 kW (998 PS; 984 hp)
Driving wheel diameter1,350 mm (4 ft 5 18 in)
Leading wheel diameter1,000 mm (3 ft 3 38 in)
Trailing wheel diameter1,000 mm (3 ft 3 38 in)
Cylinder bore600 mm (23 58 in)
Piston stroke660 mm (26 in)
Boiler Overpressure12 bar (1.20 MPa; 174 psi)
Grate area2.49 m2 (26.8 sq ft)
Superheater area50.28 m2 (541.2 sq ft)
Evaporative heating area126.62 m2 (1,362.9 sq ft)

Compared with the Prussian T 14 the axle load on the trailing wheels of the T 14.1 was initially 187.3 kN higher than that of the driving wheels. Later this was able to be reduced to 170,6 kN. The water tanks and coal bunkers were larger, so that more water and coal could be carried. Through changes in the running gear, the top speed could be increased to 70 km/h.

Because many engines had been lost due to break downs or World War I reparations, the Württemberg State Railway procured these locomotives initially for the lines from Esslingen am Neckar via Stuttgart to Ludwigsburg. They were based on the Prussian T 14.1 and differed only in a few details from their prototype.

In all 729 vehicles were procured between 1918 and 1924 for the Prussian state railways and the Prussian railway divisions of the Deutsche Reichsbahn. The Royal Württemberg State Railways and the DRG's Stuttgart division bought 39 engines between 1921 and 1922. They were given numbers 93 501 - 1261, of which 93 795–814 and 832–850 were former Württemberg machines.

The Deutsche Bundesbahn retired the last T 14.1, designated in 1968 as Class 093, that same year. In the Deutsche Reichsbahn (GDR) the engines, which had been designated in 1970 as 93.1–6, were withdrawn by 1972.

The only existing example, number 93 526, is to be found in the German Steam Locomotive Museum at Neuenmarkt-Wirsberg and is currently being restored there.

See also

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