Indian Railway 4-8-2 Locomotives in India


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 6367)

Data from [], a reprint of the Vulcan magazine for Spring 1950. The locomotives were fitted with Timken roller bearings on all axles. These were clearly mixed-traffic locomotives that were not overendowed with superheat, but with a boiler of considerable capacity.They were similar to the 246 class supplied to the "Gold Coast" (Ghana) in 1949 and had many of the features found in the Tasmanian Railway engines of the same vintage.

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknown
Locobase ID6367
RailroadIndian Railway
CountryIndia
Whyte4-8-2
Number in Class30
Road Numbers
Gauge3'6"
Number Built30
BuilderVulcan Foundry
Year1950
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)29,120 / 13,209
Weight on Drivers (lbs / kg)110,936 / 50,320
Engine Weight (lbs / kg)153,468 / 69,612
Tender Loaded Weight (lbs / kg)98,392 / 44,630
Total Engine and Tender Weight (lbs / kg)251,860 / 114,242
Tender Water Capacity (gals / ML)4800 / 18.18
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 8.40 / 8
Minimum weight of rail (calculated) (lb/yd / kg/m)46 / 23
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)204.50 / 14.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)28,160 / 12773.18
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.94
Heating Ability
Tubes (number - dia) (in / mm)121 - 2" / 51
Flues (number - dia) (in / mm)18 - 5.25" / 133
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)160 / 14.87
Grate Area (sq ft / m2)34 / 3.16
Evaporative Heating Surface (sq ft / m2)1608 / 149.44
Superheating Surface (sq ft / m2)298 / 27.70
Combined Heating Surface (sq ft / m2)1906 / 177.14
Evaporative Heating Surface/Cylinder Volume227.49
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6953
Same as above plus superheater percentage8065
Same as above but substitute firebox area for grate area37,955
Power L111,781
Power MT936.49

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