Data from Apercu des Chemins de Fer Russes Depuis l'Origine Jusqu'en 1892, Editor in Chief Andre de Gortschakov (Brussells: Paul Weissenbruch, 1897).
The account credits an English firm of Uster with the first deliveries, then notes that the Alexandrov works supplied 30 of the engines. The K class were the leading passenger locomotive according to the account. Locals of 43 axles and totalling 260 tonnes or expresses of 23 axles and 160 tonnes could be hauled by a K.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | K |
| Locobase ID | 9110 |
| Railroad | Imperial Government of Russia Nicolas RR |
| Country | Russia |
| Whyte | 4-4-0 |
| Number in Class | 50 |
| Road Numbers | |
| Gauge | 5' |
| Number Built | 50 |
| Builder | Uster |
| Year | |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 28.95 / 8.82 |
| 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) | |
| Engine Weight (lbs / kg) | 84,878 / 38,500 |
| Tender Loaded Weight (lbs / kg) | 65,698 / 29,800 |
| Total Engine and Tender Weight (lbs / kg) | 150,576 / 68,300 |
| Tender Water Capacity (gals / ML) | 2761 / 10.46 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67 / 1702 |
| Boiler Pressure (psi / kPa) | 118.90 / 820 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.01" x 22.01" / 432x559 |
| Tractive Effort (lbs / kg) | 9606 / 4357.21 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 174 - 2.244" / 57 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.50 / 3.81 |
| Firebox Area (sq ft / m2) | 111.90 / 10.40 |
| Grate Area (sq ft / m2) | 18.72 / 1.74 |
| Evaporative Heating Surface (sq ft / m2) | 1353 / 125.70 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1353 / 125.70 |
| Evaporative Heating Surface/Cylinder Volume | 233.72 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2226 |
| Same as above plus superheater percentage | 2226 |
| Same as above but substitute firebox area for grate area | 13,305 |
| Power L1 | 4386 |
| Power MT | |