Data from "Locomotives", Type 77, Usines du Creusot-Schneider et Cie (Creusot: A Temporal, 1875), n.a. Works numbers were 1574-1576.
This small trio offered a compact profile with a tall, vase-like spark-arresting stack over a pair of cylinders fitted outside the frames. A short dome sat over the first driven axle. A taller dome sat on an octagonal plnth set over the second axle. Long, rectangular water tanks flanked the boiler and the cab. Its bunker had a sleigh-like wood basket.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Type 77 |
| Locobase ID | 21216 |
| Railroad | Moskau-Brest |
| Country | Russia |
| Whyte | 0-6-0T |
| Number in Class | 3 |
| Road Numbers | D 1-D 3/HO 376-HO 378 |
| Gauge | 5' |
| Number Built | 3 |
| Builder | Schneider-Creusot |
| Year | 1873 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.83 / 3.30 |
| Engine Wheelbase (ft / m) | 10.83 / 3.30 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 10.83 / 3.30 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 65,036 / 29,500 |
| Engine Weight (lbs / kg) | 65,036 / 29,500 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 41.70 / 1060 |
| Boiler Pressure (psi / kPa) | 126.20 / 870 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.54" x 18.9" / 420x480 |
| Tractive Effort (lbs / kg) | 13,301 / 6033.24 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.89 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 181 - 1.732" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.19 / 2.80 |
| Firebox Area (sq ft / m2) | 53.82 / 5 |
| Grate Area (sq ft / m2) | 8.40 / 0.78 |
| Evaporative Heating Surface (sq ft / m2) | 840 / 78 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 840 / 78 |
| Evaporative Heating Surface/Cylinder Volume | 178.72 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1060 |
| Same as above plus superheater percentage | 1060 |
| Same as above but substitute firebox area for grate area | 6792 |
| Power L1 | 2070 |
| Power MT | 210.51 |