Data from dspace.dial.pipex.com/javatour/ambarawa/locos/D1107.htm, a site for the Ambarawa Railway Museum maintained by Rob Dickinson. See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. See also "Lokomotif D11" in Wikipedia (translated by Google) at [], last accessed 25 August 2026.
The tables suggest that although these locomotives were delivered over a 9-year period, they were in fact one class. Works numbers were 3040 in 1913, 3206 in 1914, 4072-4074 in 1920, 4086-4088 in 1921, 4506-4508 in 1925.
Rob Dickinson wrote that the D11s never strayed from the Malang's operating area, which centered on the city 87 km (54 miles) south of Surabaya in East Java. Wikipedia says the D11s hauled molasses trains in and around the Malang regency as well as heading up mixed consists of passenger carriages and freight cars. In sum, adds Wikipedia, "The MSM14/D11 was considered reliable and capable of hauling longer and heavier train consists."
Data from [] . See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. Works numbers 8266-8268, 8381 in 1912; 8752-8753, 8803-8807 in 1914.
Doubling the cylinder volume more than offset the taller driver diameters. Eight-coupled freight tanks that spread the weight over four axles rather the the three axles of the 0-6-0Ts Hartmann delivered in the same year. (Locobase 4741) . Even so, the average minimum axle loading rose by a short ton.
See Locobase 4753 for the pair of superheated 0-8-0Ts delivered in 1922.
Data from [] . See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. Works numbers were 4530-4531 in 1922.
Similar in size and number of driven axles to the eleven D16s supplied by Borsig in 1912 (Locobase 4752), this pair from Hartmann offered larger-diameter cylinders with piston valves and a superheater. Average minimum axle load decreased slightly.
| Principal Dimensions by Steve Llanso of Middle Run Media | |||
|---|---|---|---|
| Class | 14/D11 | 21/D16 | 26/D17 |
| Locobase ID | 4748 | 4752 | 4753 |
| Railroad | Malang Stoomtram Mij | Madura Stoomtram Mij | Madura Stoomtram Mij |
| Country | Indonesia | Indonesia | Indonesia |
| Whyte | 0-8-0T | 0-8-0T | 0-8-0T |
| Number in Class | 11 | 11 | 2 |
| Road Numbers | 14-24/D1101-1111 | 21-25, 28-33/D1601-1611 | 26-27/D1701-1702 |
| Gauge | 3'6" | 3'6" | 3'6" |
| Number Built | 11 | 11 | 2 |
| Builder | Hohenzollern | Borsig | Hartmann |
| Year | 1913 | 1912 | 1922 |
| Valve Gear | Heusinger | ||
| 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) | 62,831 / 28,500 | 61,288 / 27,800 | 60,407 / 27,400 |
| Engine Weight (lbs / kg) | 62,831 / 28,500 | 61,288 / 27,800 | 60,407 / 27,400 |
| 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) | 26 / 13 | 26 / 13 | 25 / 12.50 |
| Geometry Relating to Tractive Effort | |||
| Driver Diameter (in / mm) | 35.40 / 900 | 35.40 / 900 | 35.40 / 900 |
| Boiler Pressure (psi / kPa) | 188.50 / 1300 | 188.50 / 1300 | 171.10 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13.39" x 17.72" / 340x450 | 12.6" x 19.69" / 320x500 | 14.17" x 19.69" / 360x500 |
| Tractive Effort (lbs / kg) | 14,380 / 6522.67 | 14,149 / 6417.89 | 16,242 / 7367.26 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.37 | 4.33 | 3.72 |
| 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) | 10.76 / 1 | 10.76 / 1 | 9.68 / 0.90 |
| Evaporative Heating Surface (sq ft / m2) | 592 / 55 | 551 / 51.20 | 425 / 39.50 |
| Superheating Surface (sq ft / m2) | 194 / 18 | ||
| Combined Heating Surface (sq ft / m2) | 592 / 55 | 551 / 51.20 | 619 / 57.50 |
| Evaporative Heating Surface/Cylinder Volume | 204.98 | 193.90 | 118.26 |
| Computations Relating to Power Output (More Information) | |||
| Robert LeMassena's Power Computation | 2028 | 2028 | 1656 |
| Same as above plus superheater percentage | 2028 | 2028 | 2170 |
| Same as above but substitute firebox area for grate area | |||
| Power L1 | |||
| Power MT | |||