Great Indian Peninsula 4-4-2 Locomotives in India

Class Details by Steve Llanso of Sweat House Media

Class E/1 (Locobase 10624)

Data from [] (30 June 2003) and from "New Locomotives for the GIPR," The Locomotive Magazine, Vol XIII (14 September 1907), p. 163.

These Atlantic Passenger (AP) locomotives were part of the series of engines designed by the British Engineering Standards Association for Indian railways in the first decade of the 20th century. The design was classic British, both in its styling and its general layout. Like an increasing number of British engines at the time, it use a Belpaire firebox. On the other hand, the Indian locomotives' grates were considerably bigger than comparable British locomotives.

See the HP 4-6-0 for full description of the BESA intention and varying views of its utility.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10624
RailroadGreat Indian Peninsula (GIPR)
Number in Class40
Road Numbers900-939
Number Built40
BuilderNorth British
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.75 / 2.06
Engine Wheelbase (ft / m)20.25 / 6.17
Ratio of driving wheelbase to overall engine wheelbase 0.33
Overall Wheelbase (engine & tender) (ft / m)49.08 / 14.96
Axle Loading (Maximum Weight per Axle) (lbs / kg)39,200 / 17,781
Weight on Drivers (lbs / kg)78,400 / 35,562
Engine Weight (lbs / kg)154,000 / 69,853
Tender Loaded Weight (lbs / kg)134,400 / 60,963
Total Engine and Tender Weight (lbs / kg)288,400 / 130,816
Tender Water Capacity (gals / ML)5400 / 20.45
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)11 / 10
Minimum weight of rail (calculated) (lb/yd / kg/m)65 / 32.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)78 / 1981
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x660
Tractive Effort (lbs / kg)18,411 / 8351.10
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26
Heating Ability
Tubes (number - dia) (in / mm)201 - 2.125" / 54
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)15.87 / 4.84
Firebox Area (sq ft / m2)157 / 14.59
Grate Area (sq ft / m2)32 / 2.97
Evaporative Heating Surface (sq ft / m2)2037 / 189.31
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2037 / 189.31
Evaporative Heating Surface/Cylinder Volume238.75
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5760
Same as above plus superheater percentage5760
Same as above but substitute firebox area for grate area28,260
Power L17740
Power MT435.30

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