Data from Apercu des Chemins de Fer Russes Depuis l'Origine Jusqu'en 1892, Editor in Chief Andre de Gortschakov (Brussells: Paul Weissenbruch, 1897).
These cross-compound Ten-wheelers were the brainchild of the President of Administration (direct & clumsy translation) of the Wlaw, J J Kerbedz. He saw the need for increased speed and heavier trains over a line that had many grades of 1% or more. In devising the leading bogie, the engineers created an arrangement that allowed negotiation of 266-meter curves.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 9191 |
| Railroad | Vladikawska |
| Country | Russia |
| Whyte | 2-8-0 |
| Number in Class | 6 |
| Road Numbers | |
| Gauge | 5' |
| Number Built | 6 |
| Builder | Henschel & Sohn |
| Year | 1892 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.44 / 4.40 |
| Engine Wheelbase (ft / m) | 22.15 / 6.75 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,660 / 13,000 |
| Weight on Drivers (lbs / kg) | 113,736 / 51,590 |
| Engine Weight (lbs / kg) | 137,339 / 62,296 |
| Tender Loaded Weight (lbs / kg) | 92,594 / 42,000 |
| Total Engine and Tender Weight (lbs / kg) | 229,933 / 104,296 |
| Tender Water Capacity (gals / ML) | 5095 / 19.30 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 49.20 / 1250 |
| Boiler Pressure (psi / kPa) | 169.70 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20.47" x 25.2" / 520x640 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 29.13" x 25.2" / 740x640 (1) |
| Tractive Effort (lbs / kg) | 20,724 / 9400.26 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.49 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 224 - 2.008" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 15.26 / 4.65 |
| Firebox Area (sq ft / m2) | 192.60 / 17.90 |
| Grate Area (sq ft / m2) | 26.90 / 2.50 |
| Evaporative Heating Surface (sq ft / m2) | 1942 / 180.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1942 / 180.50 |
| Evaporative Heating Surface/Cylinder Volume | 404.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4565 |
| Same as above plus superheater percentage | 4565 |
| Same as above but substitute firebox area for grate area | 32,684 |
| Power L1 | 4159 |
| Power MT | 322.47 |