Basic technical data of the Ol49 series steam engines
Steam locomotive Ol49
Axle arrangement 1-3-1
Cylinder diameter / piston stroke 500/630 mm
Diameter of drive wheels 1750 mm
Spacing of extreme axes 17275 mm
Length of the locomotive (with bumpers) 20675 mm
The pressure in the 1.6 Mpa boiler
Grate area 3.70 m2
The boiler's heating surface is 162.90 m2
Max axle load on rails 17.0 t
The mass of the steam engine is 100.1 t
Weight in service (with tendency) 144.9 t
9600 kG tractive force
Power 1265 kM
Top speed 100 km / h
Tender 25D49
Wheel diameter 1000 mm
The capacity of the water box is 25.0 m3
The capacity of the coal box is 12.0 tons
The weight of the empty tendril 25.0 t
Weight in service state 62.0 t
The most locomotives stationed in Wolsztyn belong to the Ol49 series. This is the Polish construction of a passenger vehicle from 1949. These locomotives replaced the worn out Ok1 and Ol12 on secondary lines. The engine has low pressure on the axle, which makes it irreplaceable on lines with poor surface. Tender is also a Polish construction and has the designation 25D49. The disadvantage of this engine is the small diameter of the cylinders, which makes the machine has a small acceleration and is quite weak is not suitable for heavy passenger trains. Here, however, Wolsztyn is irreplaceable. In total, in the years 1951-1954, 115 machines of these machines were built in the Locomotives Factory in Chrzanów. in Wolsztyn, every day when driving passenger trains, we can see locomotives numbers: 7, 23, 59, 69. It is also the largest cluster of these machines on the Polish State Railways. Steam locomotives Ol49-60 (factory number 3171, year 1953) and Ol49-85 (factory number 3130, year 1953) were brought last year from the engine house in Choszczno and set up on the site of the open-air museum as monuments of technology.