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Polish Steam Locomotives[Inhalt]
Polish State Railways Ok22
Poland | 1923 | 190 produced
Ok22-31 exhibited as a memorial
Ok22-31 exhibited as a memorial
Rainer Haufe
General
Built1923-1934
ManufacturerHanomag, Fablok
Axle config4-6-0 (Ten-wheeler) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length61 ft 0 3/4 in
Empty weight158,292 lbs
Service weight173,945 lbs
Adhesive weight112,436 lbs
Total weight287,482 lbs
Axle load37,479 lbs
Water capacity5,680 us gal
Fuel capacity22,046 lbs (coal)
Power
Power sourcesteam
Estimated power1,207 hp (900 kW)
Optimal speed28 mph
Top speed62 mph
Starting effort27,286 lbf
Power Plant
Driver diameter68.9 in
Boiler pressure174 psi
Expansion typesimple
Cylinderstwo, 22 5/8 x 24 13/16 in
Boiler
Grate area43.2 sq ft
Firebox area151.8 sq ft
Tube heating area1,251.8 sq ft
Evaporative heating area1,403.6 sq ft
Superheater area556.5 sq ft
Total heating area1,960.1 sq ft
Calculated Values
steam locomotive
passenger
last changed: 08 2023
Polish State Railways OKl27
Poland | 1927 | 122 produced
OKl 27-41 in Chabówka railway museum
OKl 27-41 in Chabówka railway museum
Michal Derela

The designation OKl27 stands for a passenger (O) tank locomotive (K) with the wheel arrangement 2-6-2 (l), which was designed in 1927. They were the first locomotives designed and built entirely in Poland and a total of 122 were built between 1928 and 1933. In terms of appearance, they were reminiscent of typical German steam locomotives, just when you look at the driver's cab with the bent side walls. They were delivered by H. Ceglielski from Posen.

Thanks to its symmetrical axle arrangement, it was equally suitable for fast driving in both directions, which made it suitable for the use on suburban railways. When it was introduced, it was the heaviest 2-6-2 tank locomotive in Europe and the maximum axle load was around 18 tonnes.

With good coal, the locomotives were able to pull a passenger train weighing 350 tonnes at 80 km/h on level ground, on a gradient of 1.4 percent this was still 60 km/h with 130 tonnes. Although the running characteristics became a bit unsteady from 50 km/h, this hardly disturbed the operation on suburban trains with many stops. After the invasion from the Germans, 120 of the locomotives were operated by the Reichsbahn as class 7512. After the end of the war still 95 engines remained in Poland, which were used by the PKP in the areas around Warsaw and Katowice. After retirement from passenger train service, some were sold to private railways. Today four pieces are preserved, half of which are set up as monuments and half in museums.

General
Built1927-1933
ManufacturerCegielski
Axle config2-6-2T (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase28 ft 10 7/16 in
Fixed wheelbase11 ft 9 3/4 in
Empty weight149,253 lbs
Service weight187,613 lbs
Adhesive weight119,490 lbs
Axle load39,904 lbs
Water capacity2,642 us gal
Fuel capacity8,818 lbs (coal)
Power
Power sourcesteam
Indicated power917 hp (684 kW)
Optimal speed18 mph
Top speed50 mph
Starting effort32,772 lbf
Power Plant
Driver diameter59.1 in
Boiler pressure203 psi
Expansion typesimple
Cylinderstwo, 21 1/4 x 24 13/16 in
Boiler
Grate area28 sq ft
Evaporative heating area1,374.6 sq ft
Superheater area486.5 sq ft
Total heating area1,861.1 sq ft
Calculated Values
steam locomotive
passenger
tank locomotive
last changed: 02/2022
Polish State Railways Pt47
Poland | 1948 | 180 produced
Pt47-65 at a locomotive parade in Wolsztyn in April 2016
Pt47-65 at a locomotive parade in Wolsztyn in April 2016
Marek Mróz

After the Second World War, the PKP had the Pt47 developed as a further development of the pre-war Pt31. The P stood for passenger train, the t for the wheel arrangement 2-8-2 and the number for the year of development. In the basic dimensions they corresponded to their predecessor. 120 locomotives were built by Fablok and 60 by Cegielski.

The main changes to the boiler were in the firebox. This was now made of steel and had three brick arches to increase the heating area. In addition, the sand box and the steam dome were under a common panel, which additionally dried the sand. The leading axle was still in a Krauss-Helmholtz bogie together with the first coupled axle, while the trailing axle was a simple Adams axle.

The tenders were initially taken from the German classes 41 and 44. Later engines received new Polish tenders with a significantly increased coal capacity of 17 tonnes. The water tank initially held 33 cubic meters and was later reduced to 27 cubic meters by installing a mechanical stoker.

The Pt47 could reach 110 km/h, but could not quite keep up with Pacifics when it came to smooth running. But a larger starting tractive effort was available and the top speed could be reached with trains of up to 600 tonnes. Thanks to their power, they were able to stay in service well into the 1980s. From a total of 15 preserved machines, only one is operational today.

General
Built1948-1951
ManufacturerFablok, Cegielski
Axle config2-8-2 (Mikado) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length78 ft 2 3/8 in
Wheelbase40 ft 0 5/16 in
Fixed wheelbase19 ft 8 1/4 in
Empty weight213,848 lbs
Service weight229,721 lbs
Adhesive weight162,701 lbs
Total weight405,209 lbs
Axle load40,345 lbs
Water capacity8,718 us gal
Fuel capacity37,479 lbs (coal)
Power
Power sourcesteam
Indicated power1,974 hp (1,472 kW)
Optimal speed29 mph
Top speed68 mph
Starting effort43,054 lbf
Power Plant
Driver diameter72.8 in
Boiler pressure218 psi
Expansion typesimple
Cylinderstwo, 24 13/16 x 27 9/16 in
Boiler
Grate area48.3 sq ft
Firebox area213.1 sq ft
Tube heating area2,361.6 sq ft
Evaporative heating area2,574.7 sq ft
Superheater area984.9 sq ft
Total heating area3,559.6 sq ft
Calculated Values
steam locomotive
express
last changed: 01/2023
Polish State Railways Tkt48
Poland | 1950 | 209 produced
Tkt48-102 as a memorial in Jaslo
Tkt48-102 as a memorial in Jaslo
Jan Lorenz
General
Built1950-1957
ManufacturerFablok, Cegielski
Axle config2-8-2T (Mikado) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length46 ft 7 1/16 in
Wheelbase34 ft 1 7/16 in
Fixed wheelbase5 ft 6 15/16 in
Empty weight171,960 lbs
Service weight216,053 lbs
Adhesive weight148,261 lbs
Axle load37,148 lbs
Water capacity2,642 us gal
Fuel capacity13,228 lbs (coal)
Power
Power sourcesteam
Estimated power1,609 hp (1,200 kW)
Optimal speed28 mph
Top speed50 mph
Starting effort36,906 lbf
Power Plant
Driver diameter57.1 in
Boiler pressure232 psi
Expansion typesimple
Cylinderstwo, 19 11/16 x 27 9/16 in
Boiler
Grate area32 sq ft
Firebox area166.8 sq ft
Tube heating area1,158.2 sq ft
Evaporative heating area1,325 sq ft
Superheater area528.5 sq ft
Total heating area1,853.5 sq ft
Calculated Values
steam locomotive
passenger
freight
tank locomotive
last changed: 09 2023
Polish State Railways Ol49
Poland | 1951 | 115 produced
Ol49-32 in 1995 with a double deck train
Ol49-32 in 1995 with a double deck train
Dale Roberts
Ol49-59 in April 2009 in front of a special train
Ol49-59 in April 2009 in front of a special train
Yves6
General
Built1951-1954
ManufacturerFablok
Axle config2-6-2 (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length67 ft 10 in
Length loco33 ft 7 9/16 in
Wheelbase57 ft 7 3/4 in
Total wheelbase13 ft 1 1/2 in
Empty weight165,567 lbs
Service weight183,535 lbs
Adhesive weight113,317 lbs
Total weight333,779 lbs
Axle load37,809 lbs
Water capacity6,604 us gal
Fuel capacity26,455 lbs (coal)
Power
Power sourcesteam
Estimated power1,609 hp (1,200 kW)
Optimal speed37 mph
Top speed62 mph
Starting effort27,521 lbf
Power Plant
Driver diameter68.9 in
Boiler pressure232 psi
Expansion typesimple
Cylinderstwo, 19 11/16 x 24 13/16 in
Boiler
Grate area39.8 sq ft
Firebox area179.8 sq ft
Tube heating area1,573.7 sq ft
Evaporative heating area1,753.4 sq ft
Superheater area735.2 sq ft
Total heating area2,488.6 sq ft
Calculated Values
steam locomotive
passenger
last changed: 10 2023
Fablok Tkh49-1 “Ferrum 47”
Poland | 1947 | 477 produced
Tkh49-1 in March 2006 in Khabovka
Tkh49-1 in March 2006 in Khabovka
wassen
General
Built1947-1960
ManufacturerFablok
Axle config0-6-0T (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length30 ft 1 in
Wheelbase11 ft 1 7/8 in
Fixed wheelbase11 ft 1 7/8 in
Empty weight76,721 lbs
Service weight97,885 lbs
Adhesive weight97,885 lbs
Axle load32,628 lbs
Water capacity1,321 us gal
Fuel capacity5,512 lbs (coal)
Power
Power sourcesteam
Estimated power402 hp (300 kW)
Optimal speed10 mph
Top speed28 mph
Starting effort24,675 lbf
Power Plant
Driver diameter45.3 in
Boiler pressure188 psi
Expansion typesimple
Cylinderstwo, 18 1/8 x 21 1/4 in
Boiler
Grate area18.3 sq ft
Evaporative heating area1,076.4 sq ft
Total heating area1,076.4 sq ft
Calculated Values
steam locomotive
freight
switcher
industry
tank locomotive
last changed: 10 2023
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