Perushaan Negara Kereta Api 2-8-2 Locomotives in Indonesia


Class Details by Steve Llanso of Sweat House Media

Class D52 (Locobase 2491)

Data from Indra Krishnamurti, "Steam Locomotive Roster, Page 1" at [link] and "Steam Locomotive Technical Data" on the Locomotives of the Indonesian Railway website at [link], last accessed 13 July 2023; and "Lokomotif D52" in Wikieedia at [link] (as translated by Google), last accessed 13 July 2023. Works numbers were 3224-3323 in 1951-1952.

Wikipedia's account begins by noting that these were the only mainline steam locomotives ordered by the Djawatan Kereta Api (DKA) (Indonesia Railway Authority) after the archipelago achieved independence. General-purpose or mixed-traffic locomotives with a tonnage rating of 600 tons at 90 kph (56 mph) on the level or 40 kph (25 mph) up a 1% grade.

It adds that Javanese riders knew the class as passenger locomotives and, as Google translates, "Some people even idolize this locomotive because of its faithfulness to deliver passengers". On Sumatra, the D52s hauled coal trains.

The design's ability to hit such speeds were highly prized in the lowlands, "but very bad for mountain tracks (especially in West Java), because of its tendency to run fast." Such a high-pressure boiler could explode even more violently than most,

Designed for either coal or oil firing, the oil burners weighing a bit more. The first 50 came fitted for coal, the others for oil. Between 1956 and 1965, at least 21 coal burners were converted for oil.

Some authorities trace the design's origins to the Deutsches Reichsbahn's BR 41 (Locobase 4316), comments Wikipedia, which notes "the typical features of German-made locomotives, such as Witte typesmoke deflector, "einheitslkok" standard boiler, and several other features."

Also see dspace.dial.pipex.com/javatour/ambarawa/locos/D52009.htm, a site for the Ambarawa Railway Museum maintained by Rob Dickinson.

Only 52099 was preserved and is displayed at Purwosari Station in Solo, Central Java.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassD52
Locobase ID2491
RailroadPerushaan Negara Kereta Api
CountryIndonesia
Whyte2-8-2
Number in Class100
Road NumbersD52001-D52100
Gauge3'6"
Number Built100
BuilderKrupp
Year1952
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.75 / 4.80
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)57.41 / 17.50
Axle Loading (Maximum Weight per Axle) (lbs / kg)28,396 / 12,880
Weight on Drivers (lbs / kg)112,436 / 51,000
Engine Weight (lbs / kg)162,701 / 73,800
Tender Loaded Weight (lbs / kg)111,113 / 50,400
Total Engine and Tender Weight (lbs / kg)273,814 / 124,200
Tender Water Capacity (gals / ML)6545 / 24.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)47 / 23.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)59.20 / 1503
Boiler Pressure (psi / kPa)232.10 / 1600
High Pressure Cylinders (dia x stroke) (in / mm)19.69" x 23.58" / 500x600
Tractive Effort (lbs / kg)30,465 / 13818.71
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.69
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)37.66 / 3.50
Evaporative Heating Surface (sq ft / m2)1840 / 171
Superheating Surface (sq ft / m2)646 / 60
Combined Heating Surface (sq ft / m2)2486 / 231
Evaporative Heating Surface/Cylinder Volume221.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation8741
Same as above plus superheater percentage11,014
Same as above but substitute firebox area for grate area
Power L1
Power MT

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