Data from Krupp im Dienst der Dampflokomotive (Essen, Germany: 1940), p 84. Works numbers were 917-919 in 1931.
Locobase's works number identification derives from the Krupp production listing of Dn2 locomotives for the 750 mm gauge delivered to "Muskau" in 1931. Krupp's publication describes the design as a wood-burner intended for forest railway operation.
Its photo shows the large tub-shaped spark-arresting stack needed to reduce fire risk. Piston valves operated by outside constant-lead radial gear fed steam to the cylinders. Locobase suspects the tender carried only the wood fuel as side water tanks flanked the boiler.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 21264 |
| Railroad | Holzfeurung-Waldbahntrieb |
| Country | Soviet Union |
| Whyte | 0-8-0 |
| Number in Class | 6 |
| Road Numbers | |
| Gauge | 75 cm |
| Number Built | 6 |
| Builder | Krupp |
| Year | 1931 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.84 / 3 |
| Engine Wheelbase (ft / m) | 9.84 / 3 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 34,833 / 15,800 |
| Engine Weight (lbs / kg) | 34,833 / 15,800 |
| Tender Loaded Weight (lbs / kg) | 22,267 / 10,100 |
| Total Engine and Tender Weight (lbs / kg) | 57,100 / 25,900 |
| Tender Water Capacity (gals / ML) | 370 / 1.40 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 15 / 7.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 23.60 / 600 |
| Boiler Pressure (psi / kPa) | 176.30 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10.63" x 11.81" / 270x300 |
| Tractive Effort (lbs / kg) | 8474 / 3843.75 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.11 |
| 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) | 7 / 0.65 |
| Evaporative Heating Surface (sq ft / m2) | 274 / 25.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 274 / 25.50 |
| Evaporative Heating Surface/Cylinder Volume | 225.87 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1234 |
| Same as above plus superheater percentage | 1234 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |