Data from "East Indian Railway Locomotives," The Locomotive Magazine, Volume VIII [8] (25April 1903), p. 282. See also Philadelphia Commercial Museum, American Trade with India (Philadelphia: Board of Trustees of the PCM, 1898), pp 9-10. Dubs produced road numbers 180-204 of these engines (works numbers 2973-2997 in 1893) and
Neilson & Company supplied 205-229 (works numbers 4546-4570 in 1893) .
This large class was designed by AW Rendell to be the standard express engines on the East Indian for years as the nearly contemporaneous report by the Commercial Museum indicates. Since entering service in 1893-1894, the average yearly mileage for the class had been recorded as 39,225 miles (63,152 km) at an average repair cost of 488 rupees per annum. One engine had racked up 184,201 miles (296,564 km) since its arrival.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Standard |
| Locobase ID | 2680 |
| Railroad | East Indian |
| Country | India |
| Whyte | 4-4-0 |
| Number in Class | 50 |
| Road Numbers | 180-229 |
| Gauge | 5'6" |
| Number Built | 50 |
| Builder | several |
| Year | 1893 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.75 / 2.67 |
| Engine Wheelbase (ft / m) | 21.50 / 6.55 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.41 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 31,360 / 14,225 |
| Weight on Drivers (lbs / kg) | 62,720 / 28,449 |
| Engine Weight (lbs / kg) | 103,040 / 46,738 |
| Tender Loaded Weight (lbs / kg) | 82,880 / 37,594 |
| Total Engine and Tender Weight (lbs / kg) | 185,920 / 84,332 |
| Tender Water Capacity (gals / ML) | 3600 / 13.64 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 52 / 26 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 79 / 2007 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 |
| Tractive Effort (lbs / kg) | 14,502 / 6578.00 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.32 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 236 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 109.90 / 10.21 |
| Grate Area (sq ft / m2) | 24 / 2.23 |
| Evaporative Heating Surface (sq ft / m2) | 1241 / 115.29 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1241 / 115.29 |
| Evaporative Heating Surface/Cylinder Volume | 162.06 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3840 |
| Same as above plus superheater percentage | 3840 |
| Same as above but substitute firebox area for grate area | 17,584 |
| Power L1 | 4926 |
| Power MT | 346.30 |