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 Middle Run Media | |
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Class | E/1 |
Locobase ID | 10624 |
Railroad | Great Indian Peninsula (GIPR) |
Country | India |
Whyte | 4-4-2 |
Number in Class | 40 |
Road Numbers | 900-939 |
Gauge | 5'6" |
Number Built | 40 |
Builder | North British |
Year | 1907 |
Valve Gear | Stephenson |
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 / 1240 |
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 Volume | 238.75 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5760 |
Same as above plus superheater percentage | 5760 |
Same as above but substitute firebox area for grate area | 28,260 |
Power L1 | 7740 |
Power MT | 435.30 |