Data from dspace.dial.pipex.com/javatour/ambarawa/locos/DSM48.htm, a site for the Ambarawa Railway Museum maintained by Rob Dickinson; and E Lassueur, "Recent Locomotives for the Dutch Indies Railways," Locomotive Magazine, Volume XXVIII [28] (14 October 1922), pp. 335-338. Werskpoor works number were 414-417.
See Indra Krishnamurti at [] for building dates and numbers both of predecessor railways and the Indonesian State Railways. Krishnamurti shows 1917 as the building date.
Lassueur commented that replacing the 0-6-4Ts
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | DSM45 |
| Locobase ID | 4988 |
| Railroad | Deli Spoorweg Mij |
| Country | Indonesia |
| Whyte | 2-8-4T |
| Number in Class | 4 |
| Road Numbers | 45-48 |
| Gauge | 3'6" |
| Number Built | 4 |
| Builder | Werkspoor |
| Year | 1916 |
| Valve Gear | |
| 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) | 19,842 / 9000 |
| Weight on Drivers (lbs / kg) | 78,925 / 35,800 |
| Engine Weight (lbs / kg) | 132,277 / 60,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1452 / 5.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.40 / 3.10 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 39.40 / 1000 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.91" x 18.9" / 455x480 |
| Tractive Effort (lbs / kg) | 22,758 / 10322.87 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.47 |
| 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) | 24.76 / 2.30 |
| Evaporative Heating Surface (sq ft / m2) | 883 / 82 |
| Superheating Surface (sq ft / m2) | 327 / 30.40 |
| Combined Heating Surface (sq ft / m2) | 1210 / 112.40 |
| Evaporative Heating Surface/Cylinder Volume | 160.23 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4308 |
| Same as above plus superheater percentage | 5471 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |