Data from [] . See also TecBook reprint of Sachsische Maschinenfabrik Richard Hartmann: alle 1910 catalogue, p.31, previewed in Google Books (last accessed 11 December 2010). See also "Madoera Stoomtram Maatschappij" (in English) in Wikipedia at [], last accessed 20 August 2026. See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. Works numbers were 2435-2446 and 2476-2483 in 1899.
The island of Madoera (later Madura), known as "Island of Charm", lies just off the eastern coast of Java, its westernmost point due north of the port of Surabaya; its area measures 4.471 sq km (1,726 sq miles). The first 18 km (11 mile) segment of the MdrSM, which opened in 1898, ran from the port of Kamal (directly across the channel from Surabayadue north to Bangkalan at the northern opening of the channel.
A year later in 1899, the MdrSM opened a 20 km (12 miles segment in eastern Madoera and finished the first period of railway construction. by extending the line east from Kamal to Kwanyar in 1913.
These six-coupled tanks made up the first 20 engines of the MdrSM.
Data from [] . See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 1/C31 | C29 |
| Locobase ID | 4741 | 4739 |
| Railroad | Madura Stoomtram Mij | Modjokerto Stoomtram Mij |
| Country | Indonesia | Indonesia |
| Whyte | 0-6-0T | 0-6-0T |
| Number in Class | 20 | 2 |
| Road Numbers | 1-20/C3101-3120 | 13-14/C2901-2902 |
| Gauge | 3'6" | 3'6" |
| Number Built | 20 | 2 |
| Builder | Hartmann | Esslingen |
| Year | 1899 | 1922 |
| Valve Gear | Heusinger | |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 6.56 / 2 | |
| Engine Wheelbase (ft / m) | 6.56 / 2 | |
| Ratio of driving wheelbase to overall engine wheelbase | 1 | |
| Overall Wheelbase (engine & tender) (ft / m) | 6.56 / 2 | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 13,757 / 6240 | |
| Weight on Drivers (lbs / kg) | 40,830 / 18,520 | 45,195 / 20,500 |
| Engine Weight (lbs / kg) | 40,830 / 18,520 | 45,195 / 20,500 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 422 / 1.60 | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.40 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 23 / 11.50 | 25 / 12.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 29.90 / 760 | 33.50 / 851 |
| Boiler Pressure (psi / kPa) | 171.10 / 1180 | 176.90 / 1220 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11.81" x 13.78" / 300x350 | 13.39" x 14.57" / 340x370 |
| Tractive Effort (lbs / kg) | 9349 / 4240.64 | 11,725 / 5318.38 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.37 | 3.85 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | ||
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | ||
| Firebox Area (sq ft / m2) | 36.58 / 3.40 | |
| Grate Area (sq ft / m2) | 7.53 / 0.70 | 7.53 / 0.70 |
| Evaporative Heating Surface (sq ft / m2) | 424 / 39.40 | 334 / 31 |
| Superheating Surface (sq ft / m2) | 136 / 12.60 | |
| Combined Heating Surface (sq ft / m2) | 424 / 39.40 | 470 / 43.60 |
| Evaporative Heating Surface/Cylinder Volume | 242.68 | 140.65 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1288 | 1332 |
| Same as above plus superheater percentage | 1288 | 1718 |
| Same as above but substitute firebox area for grate area | 6259 | |
| Power L1 | 2962 | |
| Power MT | 479.80 | |