PKP class OKl27

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PKP OKl27
OKl27 Chabowka.jpg
OKl27-41 in Chabówka
Type and origin
Power type Steam
Builder Cegielski (Poznań)
Build date 1928–1933
Total produced 122
Specifications
Configuration:
 • Whyte 2-6-2T
 • UIC 1′C1′ h2t
Gauge 1,435 mm (4 ft 8 12 in) standard gauge
Leading dia. 860 mm (33.86 in)
Driver dia. 1,500 mm (59.06 in)
Trailing dia. 860 mm (33.86 in)
Length 12.863 m (42 ft 2 in)
Adhesive weight 67.7 t (66.6 long tons; 74.6 short tons)
Loco weight 85.1 t (83.8 long tons; 93.8 short tons)
Fuel type Coal
Fuel capacity 4.0 t (3.9 long tons; 4.4 short tons)
Water cap 10,000 l (2,200 imp gal; 2,640 US gal)
Firebox:
 • Firegrate area
2.6 m2 (28 sq ft)
Boiler pressure 14 kg/cm2 (1.37 MPa; 199 psi)
Heating surface 122.7 m2 (1,321 sq ft)
Superheater:
 • Heating area 45.2 m2 (487 sq ft)
Cylinders Two, outside
Cylinder size 540 mm × 630 mm (21.26 in × 24.80 in)
Performance figures
Maximum speed 80 km/h (50 mph)
Power output 930 PS (680 kW)
Tractive effort 103 kN (23,000 lbf)
Career
Operators PKP » DRB » PKP
Class PKP: OKl27
DRB: 7512
Numbers PKP: OKl27-1 to OKl27-122
DRB: 75 1201 to 75 1320

PKP class OKl27 is a class of ordinary passenger (O) tank (K) 2-6-2 (l) steam locomotives designed in 1927 for Polskie Koleje Państwowe (Polish State Railways, PKP). It was the first completely Polish construction. The design was prepared by eng. Bryling.

History[edit]

Production[edit]

Hipolit Cegielski Metal Works in Poznań produced 122 engines in the period of 1928–1933.[1]

Operation[edit]

The OKl27 class serviced mainly local transport, especially suburban lines.

Wartime[edit]

After the German invasion of Poland in World War II, 120 of the 122 OKl27 locomotives were taken into the Deutsche Reichsbahn fleet as 75 1201 to 75 1320.[2]

Preservation[edit]

Four engines have survived: OKl27-10 in Skierniewice (as an exhibit), OKl27-26 in Warsaw Railroad Museum (as an exhibit), OKl27-27 in Gdynia (as an exhibit) and OKl27-41 in Chabówka.

See also[edit]

References[edit]

  1. ^ Durrant 1972, pp. 109–110.
  2. ^ Durrant 1972, p. 111.