Early 1900s Prussian locomotives
Prussian T 11
DRG Class 74.0–3
PKP Class OKi1
État-Belge Type 95 |
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| Type and origin |
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| Builder | |
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| Build date | 1903–1910 |
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| Total produced | 470 |
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| Specifications |
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Configuration:
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| • Whyte | 2-6-0T |
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| • German | Pt 34.16 |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
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| Leading dia. | 1,000 mm (3 ft 3+3⁄8 in) |
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| Driver dia. | 1,500 mm (4 ft 11 in) |
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| Wheelbase: | |
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| • Overall | 6,350 mm (20 ft 10 in) |
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Length:
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| • Over beams | 11,190 mm (36 ft 8+1⁄2 in) |
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| Height | 4,200 mm (13 ft 9+3⁄8 in) |
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| Axle load | 16.0 tonnes (15.7 long tons; 17.6 short tons) |
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| Adhesive weight | 47.4 tonnes (46.7 long tons; 52.2 short tons) |
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| Service weight | 62.3 tonnes (61.3 long tons; 68.7 short tons) |
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| Fuel capacity | Coal: 2.5 m3 (88 cu ft) |
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| Water cap. | 7,400 litres (1,600 imp gal; 2,000 US gal) |
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Boiler:
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| Heating tube length | 4,000 mm (13 ft 1+1⁄2 in) |
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| Boiler pressure | 12 bar (1.20 MPa; 174 psi) |
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| Heating surface: | |
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| • Firebox | 1.73 m2 (18.6 sq ft) |
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| • Evaporative | 116.40 m2 (1,252.9 sq ft) |
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| Cylinders | 2 |
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| Cylinder size | 480 mm (18+7⁄8 in) |
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| Piston stroke | 630 mm (24+13⁄16 in) |
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| Valve gear | Outside Walschaerts (Heusinger) |
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| Loco brake | Knorr compressed-air brake |
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| Parking brake | Exter counterweight brake |
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| Performance figures |
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| Maximum speed | 80 km/h (50 mph) |
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| Indicated power | 382 kW (519 PS; 512 hp) |
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| Career |
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| Numbers | DRG 74 001–358 |
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| Retired | 1974 |
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The Prussian Class T 11 were passenger tank locomotives produced between 1903 and 1910 in the service of the Prussian state railways for duties on the Berlin Stadtbahn.
