| ČSD Class 477.0 |
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| Type and origin |
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| Power type | Steam |
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| Builder | ČKD[1] |
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| Build date | 1951-1952 (38), 1955 (22)[1] |
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| Specifications |
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Configuration:
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| • Whyte | 4-8-4T[2] |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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Length:
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| • Over couplers | 17300 mm |
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| Width | 3050 mm |
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| Height | 4450 nn |
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| Service weight | 1,287 tonnes (1,267 long tons; 1,419 short tons) |
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| Fuel type | Coal |
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| RPM: | |
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| • Maximum RPM | 62.14 or 68.35 (during a stress test) |
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| Cylinders | Three[1] |
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| Performance figures |
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| Maximum speed | 100 or 110 km/h (62 or 68 mph) |
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| Career |
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| Operators | ČSD[1] |
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| Numbers | 477.001–477.060[1] |
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ČSD Class 477.0 is the last type of steam locomotive made by ČKD for Czechoslovak State Railways. In total 60 tank locomotives with axle arrangement 2′D′ 2′ (4-8-4) were produced in 1951-1952 and 1955.[1] It was a tank locomotive development of the ČSD Class 475.0 locomotive.
This locomotive has 3 pistons (two on the sides and one in the middle) with an approximate power of 1590 kW
The first series (machines with serial numbers 001-006 and 008-036) had poor weight distribution on the tender and they had to be modified. The second series (machines with serial numbers 39-60) no longer had this defect and had more water in the tank on the sides.
Three are preserved, as of 2025 two of them were still operational (013 and 043).[3][4][5]
References
- Malec, Miroslav; Martinek, Michal (1984). Naše lokomotivy (in Czech). Praha: Albatros. p. 80.
- Railway World No. 393 (February 1973)
- Výhrevna Vrútky, Železnica pre deti 2018, 5 June 2018, with photos of 477.013
- České dráhy, Železničář, 11 April 2019, page 4, mentions 477.043 pulled a train with hundreds of passengers in March 2019
- Annual report of Národní technické muzeum for calendar year 2009, mentions 477.060 was on display in Augsburg Railway Park
