Indian Railway 4-8-2 Locomotives in India
Class Details by Steve Llanso of Sweat House Media
Class unknown (Locobase 6367)
Data from [
], a reprint of the Vulcan magazine for Spring 1950. The locomotives were fitted with Timken roller bearings on all axles. These were clearly mixed-traffic locomotives that were not overendowed with superheat, but with a boiler of considerable capacity.They were similar to the 246 class supplied to the "Gold Coast" (Ghana) in 1949 and had many of the features found in the Tasmanian Railway engines of the same vintage.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 6367 |
| Railroad | Indian Railway |
| Country | India |
| Whyte | 4-8-2 |
| Number in Class | 30 |
| Road Numbers | |
| Gauge | 3'6" |
| Number Built | 30 |
| Builder | Vulcan Foundry |
| Year | 1950 |
| Valve Gear | Walschaert |
| 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) | 29,120 / 13,209 |
| Weight on Drivers (lbs / kg) | 110,936 / 50,320 |
| Engine Weight (lbs / kg) | 153,468 / 69,612 |
| Tender Loaded Weight (lbs / kg) | 98,392 / 44,630 |
| Total Engine and Tender Weight (lbs / kg) | 251,860 / 114,242 |
| Tender Water Capacity (gals / ML) | 4800 / 18.18 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.40 / 8 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 204.50 / 1410 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 24" / 457x610 |
| Tractive Effort (lbs / kg) | 28,160 / 12773.18 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.94 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 121 - 2" / 51 |
| Flues (number - dia) (in / mm) | 18 - 5.25" / 133 |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 160 / 14.87 |
| Grate Area (sq ft / m2) | 34 / 3.16 |
| Evaporative Heating Surface (sq ft / m2) | 1608 / 149.44 |
| Superheating Surface (sq ft / m2) | 298 / 27.70 |
| Combined Heating Surface (sq ft / m2) | 1906 / 177.14 |
| Evaporative Heating Surface/Cylinder Volume | 227.49 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 6953 |
| Same as above plus superheater percentage | 8065 |
| Same as above but substitute firebox area for grate area | 37,955 |
| Power L1 | 11,781 |
| Power MT | 936.49 |