Steam locomotive Pm3-5

Manufacturer: Borsig Lokomotiv-Werke GmbH, Berlin-Hennigsdorf
Serial number and year of manufacture: 14926/1940
Axle arrangement: 2’C1’
Maximum speed: 150 km/h (since 1941 r. limited to 140 km/h)

Steam overpressure in the boiler: 1,6 MPa (16 at)

Wheel diameter of wheel sets: 1000/2000/1250 mm

Tender series: 32D3

Water/ Coal supply: 34 m³, 10 t

Service mass of steam locomotive, tender included: 179 100 kg
Length over buffers: 23 905 mm

 

Representative of DRG (Deutsche Reichsbahn Gesellschaft) German railways  standardized express steam locomotives of 03.10 series, 60 units of which were in all built in 1939. Serial production was preceded by tests and aerodynamic research. To reduce air resistance the locomotives were equipped with streamlined cover, three-cylinder twin steam engine, a modern brake system with Knorr Kssbr distribution valve which allows to automatically adjust the braking process to speed and also with the devices of Automatic Train Protection system (Indusi). The Polish State Railways after the World War II took over  9 machines of this kind, marking them as Pm3 series. They were operating express trains in Poznań Osobowa, Iława, Bydgoszcz Główna, Olsztyn and Toruń Głowny locomotive sheds. The exhibited copy of Pm3-5 (designation DRG 03 in 1015) was deleted from the Polish State Railways inventory on 19 February 1967.