Data from TecBook reprint of Sachsische Maschinenfabrik Richard Hartmann: alle 1910 catalogue. p. 26, previewed in Google Books (last accessed 11 December 2010). Bern Ilge's production list, available at [], last accessed 1 October 2020. Works numbers 2954-2993 cover both engines (A and B), which formed 20 sets.
As noted in Locobase 4870, twin locomotives were two locomotives bolted back-to-back and run by one crew. The data are for the two engines combined.
Wikipedia's article on Zwilling (Heeresfeldbahn) states that the Japanese Army Field Railway procured a total of 188 twins in 1905-1906.
Data from "Feldbahn-Lokomotiven fur 600 mm Spurweite", Die Lokomotive, Volume 9, No 6 (Juni 1912), pp. 134-135.
As noted in Locobase 4870 (Zwilling) twin locomotives were two locomotives bolted back-to-back and run by one crew. The data are for the two engines combined.
These Borsig locomotives had large drum-shaped spark-arresting caps topping both chimneys (stack). In addition to side tanks on both engines, the rear locomotive trailed a tender. Tender capacities amounted to 3.1 cubic metres (3,100 litres/818 US gallons) of water and 0.85 metric tons (0.94 short tons) of coal. Locobase suspects that neither water nor coal could transfer to the tanks and bunkers of moving locomotive.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | unknown | unknown |
Locobase ID | 11874 | 20799 |
Railroad | Regierung | Regierung |
Country | Japan | Japan |
Whyte | 0-6+6-0T | 0-6+6-0T |
Number in Class | 20 | 39 |
Road Numbers | A&B 57-A&B 76 | |
Gauge | 60 cm | 60 cm |
Number Built | 20 | 39 |
Builder | Hartmann | Borsig |
Year | 1905 | 1912 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 4.27 / 1.30 | 4.27 / 1.30 |
Engine Wheelbase (ft / m) | 12.63 / 3.85 | 17.39 / 5.30 |
Ratio of driving wheelbase to overall engine wheelbase | 0.34 | 0.25 |
Overall Wheelbase (engine & tender) (ft / m) | 12.63 / 3.85 | 12.63 / 3.85 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 6526 / 2960 | 5952 / 2700 |
Weight on Drivers (lbs / kg) | 36,112 / 16,380 | 34,833 / 15,800 |
Engine Weight (lbs / kg) | 36,112 / 16,380 | 34,833 / 15,800 |
Tender Loaded Weight (lbs / kg) | 14,220 / 6450 | |
Total Engine and Tender Weight (lbs / kg) | 49,053 / 22,250 | |
Tender Water Capacity (gals / ML) | 462 / 1.75 | 238 / 0.90 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.50 / 0.45 | 0.30 / 0.25 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 10 / 5 | 10 / 5 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 23.10 / 586 | 23.10 / 586 |
Boiler Pressure (psi / kPa) | 213.20 / 1470 | 213.20 / 1470 |
High Pressure Cylinders (dia x stroke) (in / mm) | 7.09" x 9.45" / 180x240 (4) | 7.09" x 9.45" / 180x240 (4) |
Tractive Effort (lbs / kg) | 7453 / 3380.63 | 7453 / 3380.63 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.85 | 4.67 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 43 - 1.732" / 44 | |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 9.19 / 2.80 | |
Firebox Area (sq ft / m2) | 26.05 / 2.42 | 16.04 / 1.49 |
Grate Area (sq ft / m2) | 6.24 / 0.58 | 6.24 / 0.58 |
Evaporative Heating Surface (sq ft / m2) | 308 / 28.58 | 195 / 18.13 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 308 / 28.58 | 195 / 18.13 |
Evaporative Heating Surface/Cylinder Volume | 356.63 | 225.79 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 1330 | 1330 |
Same as above plus superheater percentage | 1330 | 1330 |
Same as above but substitute firebox area for grate area | 5554 | 3420 |
Power L1 | 4165 | 2616 |
Power MT | 1525.63 | 993.42 |