The Russian locomotive class U (Russian: У) was a Russian express passenger steam locomotive type. The class U was a 4-6-0 four-cylinder compound locomotive which used de Glehn compound system.
Quick Facts Type and origin, Power type ...
Russian locomotive class У [U] |
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Russian locomotive class U, number 127 (preserved) |
Type and origin |
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Power type | Steam |
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Builder | Putilov factory |
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Build date | 1906–1912 |
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Total produced | 62 |
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Specifications |
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Configuration:
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• Whyte | 4-6-0 |
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• UIC | 2'C n4v |
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Gauge | 1,524 mm (5 ft) |
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Leading dia. | 950 mm (3 ft 1+3⁄8 in) |
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Driver dia. | 1,730 mm (5 ft 8+1⁄8 in) |
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Length | - U: 11.032 m (36 ft 2+1⁄4 in)
- Uu: 11.369 m (37 ft 3.6 in)
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Height | 5,080 mm (16 ft 8 in) |
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Axle load | 15.2 tonnes (15.0 long tons; 16.8 short tons) |
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Adhesive weight | - U: 45.4 tonnes (44.7 long tons; 50.0 short tons)
- Uu: 48.9 tonnes (48.1 long tons; 53.9 short tons)
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Loco weight | - U: 72.1 tonnes (71.0 long tons; 79.5 short tons)
- Uu: 76.1 tonnes (74.9 long tons; 83.9 short tons)
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Fuel type | Fuel oil or coal |
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Firebox: | |
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• Grate area | 2.72 m2 (29.3 sq ft) |
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Boiler pressure | 14.0 kg/cm2 (1.37 MPa; 199 psi) |
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Heating surface | - U: 182 m2 (1,960 sq ft)
- Uu: 151.9 m2 (1,635 sq ft)
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Cylinders | Four, compound |
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High-pressure cylinder | - U: 370 mm × 650 mm (14+9⁄16 in × 25+9⁄16 in)
- Uu: 410 mm × 650 mm (16+1⁄8 in × 25+9⁄16 in)
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Low-pressure cylinder | 580 mm × 650 mm (22+13⁄16 in × 25+9⁄16 in) |
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Performance figures |
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Maximum speed | 115 km/h (71 mph) |
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Close
One unit, Locomotive U-127 was preserved as part of a memorial to Vladimir Lenin, at the Museum of the Moscow Railway