0-6-0 Steam Locomotives in Indonesia

Solo Valley Waterworks


Class Details by Steve Llanso of Sweat House Media

Class SS 1/500/24/C22/C13 (Locobase 4725)

Data from [] . See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. See also "Lokomotif C22" in Wikipedia (translated by Google) at [], last accessed 27 August 2026.:Works numbers were 1842-1865 in 1895.

As often happened with large batches of locomotives originally bought to support construction projects, these two dozen six-coupled tanks originally worked on the SVW beginning in 1895. To accommodate the firebox between the wheels, Cockerill mounted the first and second driving axles on an inside frame and the third within an outside frame. Wikipedia adds that the design "necessitated exceptionally long crank pins on the inner-framed wheels of the first two axles." (A photograph shows the SV 1 fitted with constant-lead outside radial valve gear, which Locobase supposes meant both the main rod and connecting rods met the crank pins further away from the centerline than usual.)

Wikipedia details the ambitious scope: "Its objectives included flood control, the creation of raw water reservoirs, and the establishment of an irrigation system for lands along the banks of the Bengawan Solo River, ensuring that local communities had sufficient water supplies for agriculture throughout the year."

Ambitious, yes, but cost overruns soon beset the project and the Colonial Office cancelled the SVW in 1900. Its builder sold its engines to the Staats Spoorwegen, which placed them in their own 500 class. Thy continued to support construction in both Java and Sumatra. Two of the original 24 served the PsSM, which bought a third from Cockerill in 1911; they took numbers 5-7 and later comprised the C22 class during the Japanese occupation.

Japanese occupiers placed the remaining 500s in class C13, a designation retained by the Djawatan Kereta Api Repoeblik Indonesia (1945) and PNKA (Perusahaan Negara Kereta Api) in 1963.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassSS 1/500/24/C22/C13
Locobase ID4725
RailroadSolo Valley Waterworks
CountryIndonesia
Whyte0-6-0T
Number in Class24
Road Numbers1-24/501-524/SS24-45/C1301-C1306
Gauge3'6"
Number Built24
BuilderCMI
Year1895
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)37,699 / 17,100
Engine Weight (lbs / kg)37,699 / 17,100
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)21 / 10.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)31.50 / 800
Boiler Pressure (psi / kPa)171.10 / 1180
High Pressure Cylinders (dia x stroke) (in / mm)11.02" x 14.17" / 280x360
Tractive Effort (lbs / kg)7945 / 3603.80
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.74
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 7.96 / 0.74
Evaporative Heating Surface (sq ft / m2)405 / 37.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)405 / 37.60
Evaporative Heating Surface/Cylinder Volume258.91
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1362
Same as above plus superheater percentage1362
Same as above but substitute firebox area for grate area
Power L1
Power MT

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