Nederlandsch-Indische Spoorweg Mij 4-6-0 Locomotives in Indonesia


Class Details by Steve Llanso of Sweat House Media

Class 82 (Locobase 10419)

Data from "Compound Freight Locomotive for Java," The Locomotive Magazine, Vol IX (12 December 1903),p. 344. (Thanks to Claus Gaertner for his 17 March 2021 email providing the proper transliteration of the builder's name.)

Indra Krishnamurti's tabulation of Indonesian locomotives at [] (last accessed 28 May 2009) does not show this class under any railway. Yet here it was, works number 2768, described as running on the standard gauge in Java, showing a brass dome over the leading coupled axle, widespread bogie, big LP cylinder on the right-hand side. The report does not indicate how many were in the class.


Class C51 (Locobase 4745)

Data from [] . See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. Photographs in Ziel and Eagleson (1973) show elephant-eared engines with Belpaire boilers.


Class C54 (Locobase 7524)

Data from 1946 Beyer, Peacock catalogue hosted on Martyn Bane's website at [] (accessed 21 May 2006). See also "Recent Locomotives for the Java Railways", Locomotive Magazine, Volume XXIX [29], No. 366 (15 February 1923), pp. 29-30. Works numbers for Batch #02209 were 6119-6124 in 1922.

The last six of this class of light-rail Tenwheelers came from BP instead of Hartmann, whose contribution appears in Locobase 4726. They used the typical BP Belpaire firebox.

Principal Dimensions by Steve Llanso of Sweat House Media

Class82C51C54
Locobase ID10419 4745 7524
RailroadNederlandsch-Indische Spoorweg MijNederlandsch-Indische Spoorweg MijNederlandsch-Indische Spoorweg Mij
CountryIndonesiaIndonesiaIndonesia
Whyte4-6-04-6-04-6-0
Number in Class106
Road Numbers82371-380/C5101-5110397
GaugeStd3'6"3'6"
Number Built106
BuilderSaechsische MaschinenfabrikBeyer, PeacockBeyer, Peacock
Year190219131922
Valve GearHeusingerWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.99 / 3.3512.14 / 3.70
Engine Wheelbase (ft / m)20.57 / 6.3021.17 / 6.45
Ratio of driving wheelbase to overall engine wheelbase 0.53 0.57
Overall Wheelbase (engine & tender) (ft / m)40.03 / 12.20
Axle Loading (Maximum Weight per Axle) (lbs / kg)18,368 / 8332
Weight on Drivers (lbs / kg)76,524 / 34,71155,116 / 25,00054,320 / 24,639
Engine Weight (lbs / kg)109,340 / 49,59678,705 / 35,70080,976 / 36,730
Tender Loaded Weight (lbs / kg)61,096 / 27,71352,294 / 23,720
Total Engine and Tender Weight (lbs / kg)170,436 / 77,309133,270 / 60,450
Tender Water Capacity (gals / ML)2900 / 112640 / 10
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.90 / 41384 / 5238.40
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.5031 / 15.5030 / 15
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)57 / 145049.60 / 126049.20 / 1250
Boiler Pressure (psi / kPa)180 / 12.40174 / 12174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)17.72" x 25.2" / 450x640 (1)15.75" x 20" / 400x51015.75" x 20.5" / 400x521
Low Pressure Cylinders (dia x stroke) (in / mm)26.2" x 25.2" / 665x640 (1)
Tractive Effort (lbs / kg)14,573 / 6610.2114,794 / 6710.4515,287 / 6934.07
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.25 3.73 3.55
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)97.50 / 9.05
Grate Area (sq ft / m2)20.50 / 1.9019.37 / 1.8019.30 / 1.79
Evaporative Heating Surface (sq ft / m2)1409 / 130.95773 / 71.80827 / 76.83
Superheating Surface (sq ft / m2)183306 / 28.43
Combined Heating Surface (sq ft / m2)1409 / 130.95956 / 71.801133 / 105.26
Evaporative Heating Surface/Cylinder Volume391.78171.40178.90
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation369033703358
Same as above plus superheater percentage369040114265
Same as above but substitute firebox area for grate area17,550
Power L14125
Power MT356.52

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