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