Assam Railway 2-6-0 Locomotives in India


Class Details by Steve Llanso of Sweat House Media

Class 23 (Locobase 12397)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 22, p. 238. Works numbers were 17410-17412 in January 1900.

These Bengali Moguls (a mixed cultural metaphor ...) were identical to the Burmese G class described in Locobase 12328.

Principal Dimensions by Steve Llanso of Sweat House Media

Class23
Locobase ID12397
RailroadAssam Railway
CountryIndia
Whyte2-6-0
Number in Class3
Road Numbers23-25
GaugeMetre
Number Built3
BuilderBurnham, Williams & Co
Year1900
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10 / 3.05
Engine Wheelbase (ft / m)16.50 / 5.03
Ratio of driving wheelbase to overall engine wheelbase 0.61
Overall Wheelbase (engine & tender) (ft / m)34.50 / 10.52
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)52,000 / 23,587
Engine Weight (lbs / kg)62,000 / 28,123
Tender Loaded Weight (lbs / kg)30,000 / 13,608
Total Engine and Tender Weight (lbs / kg)92,000 / 41,731
Tender Water Capacity (gals / ML)1518 / 5.75
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)29 / 14.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42.50 / 1080
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)14" x 20" / 356x508
Tractive Effort (lbs / kg)11,760 / 5334.25
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.42
Heating Ability
Tubes (number - dia) (in / mm)153 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.50 / 2.90
Firebox Area (sq ft / m2)78 / 7.25
Grate Area (sq ft / m2)13.50 / 1.25
Evaporative Heating Surface (sq ft / m2)738 / 68.59
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)738 / 68.59
Evaporative Heating Surface/Cylinder Volume207.11
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2025
Same as above plus superheater percentage2025
Same as above but substitute firebox area for grate area11,700
Power L13363
Power MT427.74

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