Steam locomotive Oi1-29

Manufacturer: Berliner Maschinenbau AG, vormals L. Schwartzkopff (BMAG)
Serial number and year of manufacture: 3450/1905
Axle arrangement: 1’C
Maximum speed: 75 km / h

Steam overpressure in the boiler: 1,2 MPa (12 at)

Wheel diameter of wheel sets: 1350 mm
Tender series: 16D1

Water/ Coal supply: 16 m³/ 5 t

Service mass of steam locomotive, tender included: 100 100 kg
Length over buffers: 18 500 mm


A prototype of this Prussian superheated steam locomotive was created on the basis of the idea of an engineer Robert Garbe in 1901. The aim of the project was to construct a traction vehicle with universal characteristics that can be useful in  passenger, cargo and express traffic. In all 272 units for the Prussian State Railways and 3 for the use of military railways were built. They were designated as 3 / type and since 1905 they were determined as P6. In the interwar period the Polish State Railways had 44 locomotives of this kind designated as  Oi1. After 1945 30 Oi1 locomotives were included in the inventory of Polish State Railways.  A museum copy of Oi1-26 was used by Polish State Railways in the interwar period as Oi1-7.  Since 1941 the locomotives were taken over by the German Railways and were given the designation DRG 37 171. After the war, the locomotives began the service at Bydgoszcz Index locomotive shed which was later ended in the Port of Szczecin. The last passage of this locomotive took place in February 1965. Deleted from the inventory on 28 July 1968.