Prussian T 8

The Prussian T 8 were six-coupled superheated goods tank locomotives of the Prussian state railways. They were originally intended for suburban passenger service in Berlin, and for use on branch lines. Due to their poor running qualities, they were demoted to shunting and short-distance goods train service.

Prussian T 8 DR Baureihe 89.0, 89.10 DR-Baureihe 89.64, 65 PKP TKh3
preuß. T8 Berlin 7001 in Potsdam
Number(s)	DR 89 001–078 DR 89 1001–1004 DR 89 6476, 6576
Quantity	100
Manufacturer	MBG Breslau O&K Hanomag
Year(s) of manufacture	1906–1909
Retired	1965
Axle arrangement	C h2t
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in)
Length over buffers	9,460 mm (31 ft ^1⁄2 in)
Service weight	45.6 tonnes (44.9 long tons; 50.3 short tons)
Adhesive weight	45.6 t
Axle load	15.5 tonnes (15.3 long tons; 17.1 short tons)
Top speed	60 km/h (37 mph)
Indicated Power	210 kW (286 PS; 282 hp)
Driving wheel diameter	1,350 mm (4 ft 5 ^1⁄8 in)
Cylinder bore	500 mm (19 ^11⁄16 in)
Piston stroke	600 mm (23 ^5⁄8 in)
Boiler Overpressure	12 bar (1.20 MPa; 174 psi)
Grate area	1.51 square metres (16.3 sq ft)
Superheater area	17.90 square metres (192.7 sq ft)
Evaporative heating area	68.50 m^2 (737.3 sq ft)
Brakes	Hand brake, later compressed air brake

Between 1906 and 1909, one hundred locomotives were built, of which 80 were still in service with Deutsche Reichsbahn in 1923, and 78 in 1925 when they were renumbered in class 89.0 as 89 001 to 078; but due to their poor performance, they were soon sold to private railways.

After World War I, ten locomotives were ceded to Poland, where they became PKP class TKh3.

In 1938, two locomotives were taken back into stock when Lokalbahn AG was nationalised; rather than restoring the locomotives' old numbers, they were allocated new ones: 89 1001 and 1002. The same thing happened in 1941 with the nationalisation of the Mecklenburg Friedrich-Wilhelm Railway (MFWE) (89 1003 and 1004). Two more were added to the Deutsche Reichsbahn (GDR) fleet in 1949 with the nationalisation of the Brandenburg State Railway (89 6476) and the Kreisbahn Schönermark–Damme (89 6576).

The last DR locomotive was retired in 1965; the last Deutsche Bundesbahn locomotive was a Werklok (works locomotive) which was retired in 1964.

Preservation

One locomotive has been preserved at the DB Museum Halle (Saale): 89 1004, ex MFWE 4 (second), formerly 89 001.