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.

ČSD Class 477.0
Type and origin
Power typeSteam
BuilderČKD[1]
Build date1951-1952 (38), 1955 (22)[1]
Specifications
Configuration:
  Whyte4-8-4T[2]
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Length:
  Over couplers17300 mm
Width3050 mm
Height4450 nn
Service weight1,287 tonnes (1,267 long tons; 1,419 short tons)
Fuel typeCoal
RPM:
  Maximum RPM62.14 or 68.35 (during a stress test)
CylindersThree[1]
Performance figures
Maximum speed100 or 110 km/h (62 or 68 mph)
Career
OperatorsČSD[1]
Numbers477.001–477.060[1]

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

edit
  1. 1 2 3 4 5 6 Malec, Miroslav; Martinek, Michal (1984). Naše lokomotivy (in Czech). Praha: Albatros. p. 80.
  2. Railway World No. 393 (February 1973)
  3. Výhrevna Vrútky, Železnica pre deti 2018, 5 June 2018, with photos of 477.013
  4. České dráhy, Železničář, 11 April 2019, page 4, mentions 477.043 pulled a train with hundreds of passengers in March 2019
  5. Annual report of Národní technické muzeum for calendar year 2009, mentions 477.060 was on display in Augsburg Railway Park