India Government Railways 2-6-2 Locomotives in India

Class Details by Steve Llanso of Sweat House Media

Class YL (Locobase 2498)

One of several standard designs for the Indian metre gauge. Not an attractive design with its cylindrical boiler mounted on a pedestal, the steam pipes to the cylinders masked in rectangular housings, the firebox entirely above the running board. But beauty is as beauty does ...

Dr. Jonathan Smith of Iowa State ([] ) offers slightly different dimensions for this class, including an 18 sq ft grate

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID2498
RailroadIndia Government Railways
Number in Class
Road Numbers
Number Built
BuilderStephenson & Hawthorns
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.33 / 2.54
Engine Wheelbase (ft / m)39.54 / 12.05
Ratio of driving wheelbase to overall engine wheelbase 0.21
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)17,920 / 8128
Weight on Drivers (lbs / kg)53,760 / 24,385
Engine Weight (lbs / kg)86,324 / 39,156
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2380 / 9.02
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 4.50 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)30 / 15
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)43 / 1092
Boiler Pressure (psi / kPa)210 / 14.50
High Pressure Cylinders (dia x stroke) (in / mm)12.25" x 22" / 311x559
Tractive Effort (lbs / kg)13,705 / 6216.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.92
Heating Ability
Tubes (number - dia) (in / mm) / 51
Flues (number - dia) (in / mm) / 133
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)17.75 / 1.65
Evaporative Heating Surface (sq ft / m2)525 / 48.79
Superheating Surface (sq ft / m2)130 / 12.08
Combined Heating Surface (sq ft / m2)655 / 60.87
Evaporative Heating Surface/Cylinder Volume174.94
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3728
Same as above plus superheater percentage4473
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris