Great Indian Peninsula 0-6-2 Locomotives in India

Class Details by Steve Llanso of Sweat House Media

Class 79 (Locobase 10615)

Data from "New Locomotives for the Great Indian Peninsula Ry," The Locomotive Magazine, Vol XIII (15 April 1907), p. 64

This radial-tank design replaced smaller six-coupled tanks in hauling trains of 7 bogie cars (245 total tons) in Bombay suburban service.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID10615
RailroadGreat Indian Peninsula (GIPR)
Number in Class16
Road Numbers79-94
Number Built16
BuilderKitson & Co
Valve GearStephenson
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)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1800 / 6.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.80 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60 / 1524
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)18" x 26" / 457x660
Tractive Effort (lbs / kg)21,481 / 9743.63
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)214 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)106 / 9.85
Grate Area (sq ft / m2)23 / 2.14
Evaporative Heating Surface (sq ft / m2)1169 / 108.64
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1169 / 108.64
Evaporative Heating Surface/Cylinder Volume152.66
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4140
Same as above plus superheater percentage4140
Same as above but substitute firebox area for grate area19,080
Power L13994
Power MT

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Wes Barris