Bogoslovsk Mining Company 0-4-0 Locomotives in Russia

Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 11001)

Data from "Tank Frame Locomotives", Record of Recent Construction #93 (Baldwin Locomotive Works, 1918), p.12. See also DeGolyer, Volume 57, pp. 388+. Works number was 42395 in September 1915. For a description of the Marshall valve gear, see "Marshall's Patent Valve Gear", Locomotive and Railways, Volume III [3], No 28 (April 1902), pp. 34-35.

See Locobase 10996 for a short description of this small tank-engine design sold to several industrial, mining, and agricultural companies.

Bogoslovsk Mining supplied its own brown coal for this tank-frame engine, which was identical in all respects except loaded weight (attributable to a 25-gallon/95-litre increase in tank capacity) to the SMCN engine shown in Locobase 11000.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID11001
RailroadBogoslovsk Mining Company
Number in Class1
Road Numbers
Gauge885 mm
Number Built1
Valve GearMarshall
Locomotive Length and Weight
Driver Wheelbase (ft / m)4 / 1.22
Engine Wheelbase (ft / m)4 / 1.22
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)4 / 1.22
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)19,500 / 8845
Engine Weight (lbs / kg)19,500 / 8845
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)19,500 / 8845
Tender Water Capacity (gals / ML)200 / 0.76
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)16 / 8
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)23 / 584
Boiler Pressure (psi / kPa)176 / 12.10
High Pressure Cylinders (dia x stroke) (in / mm)8" x 12" / 203x305
Tractive Effort (lbs / kg)4995 / 2265.70
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.90
Heating Ability
Tubes (number - dia) (in / mm)56 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)7 / 2.13
Firebox Area (sq ft / m2)21 / 1.95
Grate Area (sq ft / m2) 4.90 / 0.46
Evaporative Heating Surface (sq ft / m2)198 / 18.39
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)198 / 18.39
Evaporative Heating Surface/Cylinder Volume283.61
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation862
Same as above plus superheater percentage862
Same as above but substitute firebox area for grate area3696
Power L12928
Power MT662.06

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