East Indian Railways 2-4-2 Locomotives in India
Class Details by Steve Llanso of Sweat House Media
Class WU (Locobase 2481)
Some data from "Indian locomotive class WU" in Wikiwand at [
], last accessed 14 May 2023. Works numbers were 4783-4786 in 1943.
These small tank engine used for local passenger traffic. Although the EIR ordered the quartet in 1940, the EIR didn't receive them until 1943. At the time, the railway planned to add to the class. As the railway looked ahead to predicted increases in traffic demand, however, they concluded that these engines were too small and chose not to order any more.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | WU |
| Locobase ID | 2481 |
| Railroad | East Indian Railways |
| Country | India |
| Whyte | 2-4-2T |
| Number in Class | |
| Road Numbers | 2200-2203/26950-26953 |
| Gauge | 5'6" |
| Number Built | |
| Builder | Vulcan Foundry |
| Year | 1943 |
| Valve Gear | Caprotti |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.75 / 2.97 |
| Engine Wheelbase (ft / m) | 27 / 8.23 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.36 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 36,960 / 16,765 |
| Weight on Drivers (lbs / kg) | 73,920 / 33,530 |
| Engine Weight (lbs / kg) | 141,695 / 64,272 |
| 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) | 3.40 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 62 / 31 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 61.50 / 1562 |
| Boiler Pressure (psi / kPa) | 210 / 1450 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 26" / 330x660 |
| Tractive Effort (lbs / kg) | 12,753 / 5784.67 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.80 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 18.50 / 1.72 |
| Evaporative Heating Surface (sq ft / m2) | 742 / 68.96 |
| Superheating Surface (sq ft / m2) | 182 / 16.91 |
| Combined Heating Surface (sq ft / m2) | 924 / 85.87 |
| Evaporative Heating Surface/Cylinder Volume | 185.77 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3885 |
| Same as above plus superheater percentage | 4662 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |