Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 21 p. 82. Works numbers were 15637-15639 in December 1897.
Full-size tanks for mixed traffic service, the three engines in this batch were tasked to average 45 versts/hour (approx 47.7 km/h or 29.6 mph) on the level pulling 200 tons or 25 versts/hour (26.5 km/h or 16.5 mph) on a 0.6% grade.
In 1902, the Orekhoff was merged into the Moscow-Kazan and the engines were renumbered.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 12242 |
| Railroad | Orekhoff |
| Country | Russia |
| Whyte | 0-6-4T |
| Number in Class | 3 |
| Road Numbers | 1-3 / 1311-1313 |
| Gauge | 5' |
| Number Built | 3 |
| Builder | Burnham, Williams & Co |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.58 / 3.22 |
| Engine Wheelbase (ft / m) | 21.85 / 6.66 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | 21.85 / 6.66 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 66,000 / 29,937 |
| Engine Weight (lbs / kg) | 99,000 / 44,906 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 99,000 / 44,906 |
| Tender Water Capacity (gals / ML) | 1720 / 6.52 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 633 / 2396 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 56 / 1422 |
| Boiler Pressure (psi / kPa) | 165 / 1140 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 15,387 / 6979.43 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.29 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 119 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.33 / 3.45 |
| Firebox Area (sq ft / m2) | 69.10 / 6.42 |
| Grate Area (sq ft / m2) | 14 / 1.30 |
| Evaporative Heating Surface (sq ft / m2) | 770 / 71.56 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 770 / 71.56 |
| Evaporative Heating Surface/Cylinder Volume | 137.87 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2310 |
| Same as above plus superheater percentage | 2310 |
| Same as above but substitute firebox area for grate area | 11,402 |
| Power L1 | 3076 |
| Power MT | 308.25 |