ČSD Class 477.0

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.

Power typeSteam

Power typeSteam

BuilderČKD^[1]

Build date1951-1952 (38), 1955 (22)^[1]

Quick facts Type and origin, Power type ...

ČSD Class 477.0
477.043 in Railway Museum Lužná u Rakovníka
Type and origin Power type Steam Builder ČKD[1] Build date 1951-1952 (38), 1955 (22)[1]
Specifications Configuration: ​  • Whyte 4-8-4T[2] Gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge Length: ​  • Over couplers 17300 mm Width 3050 mm Height 4450 nn Service weight 1,287 tonnes (1,267 long tons; 1,419 short tons) Fuel type Coal RPM: ​  • Maximum RPM 62.14 or 68.35 (during a stress test) Cylinders Three[1]
Performance figures Maximum speed 100 or 110 km/h (62 or 68 mph)
Career Operators ČSD[1] Numbers 477.001–477.060[1]

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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]