Czech State Rwy 4-6-0 Locomotives in Czechoslovakia

Class Details by Steve Llanso of Sweat House Media

Class 364.2 (Locobase 1645)

Data from A[nthony] E[dward] Durrant, The Steam Locomotives of Eastern Europe (Newton Abbot:David & Charles, 1966), supplemented by Google translation of Czech Atlas website at [], last accessed 20 October 2011.

These were rebuilds of the kkStB 209 & 309 (Locobases 470 & 1197, respectively), which had been delivered to the ONWB in 1904 as four-cylinder compounds (209) and thre-cylinder compounds (309).

In recasting them as two-cylinder simple locomotives, Czech designer Ludvfk Schejbal also added a moderate amount of superheat. The result proved to be both efficient and economical.

After their reconstructions in 1930-1933, the class all survived the Second World War, being retired late in 1940s and early 1950s.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID1645
RailroadCzech State Rwy (CSD)
Number in Class8
Road Numbers364.201-364.208
Number Built
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)95,460 / 43,300
Engine Weight (lbs / kg)145,725 / 66,100
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)4013 / 15.20
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 7.40 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)53 / 26.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.10 / 1730
Boiler Pressure (psi / kPa)195.80 / 13.50
High Pressure Cylinders (dia x stroke) (in / mm)21.65" x 25.59" / 550x650
Tractive Effort (lbs / kg)29,314 / 13296.62
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.26
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)148.54 / 13.80
Grate Area (sq ft / m2)33.37 / 3.10
Evaporative Heating Surface (sq ft / m2)1625 / 151
Superheating Surface (sq ft / m2)284 / 26.40
Combined Heating Surface (sq ft / m2)1909 / 177.40
Evaporative Heating Surface/Cylinder Volume149.04
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6534
Same as above plus superheater percentage7514
Same as above but substitute firebox area for grate area33,447
Power L110,035
Power MT695.27

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