Data from "WV Class Passenger Tank Engine for the (ISR) East Indian Railway", Vulcan Foundry Locomotive Catalogue, No. 68, found on Flicker's Historical Locomotive Images website at []. (Many thanks to Jorge Cerezo Toledo for his 26 June 2021 email containing links to several sites including the Vulcan Catalogue referred to above.) Works numbers were 4787-4790 in 1942.
This quartet of suburban tanks was intended to serve East Indian's large network of commuter lines. It's likely that the ISR and Vulcan Foundry realized even before these were completed that the bunker capacity would be too small. So the builder quickly set work turning out ten 2-6-4T WM class (Locobase 4289), which reproduced the WV design with larger bunkers carried by a bogie truck rather than the single trailing axle in the WVs.
Soon after their arrival, this batch was converted to WMs.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | IGR/WV |
Locobase ID | 20930 |
Railroad | East Indian |
Country | India |
Whyte | 2-6-2T |
Number in Class | 4 |
Road Numbers | 2120-2123/1 |
Gauge | 5'6" |
Number Built | 4 |
Builder | Vulcan Foundry |
Year | 1942 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14 / 4.27 |
Engine Wheelbase (ft / m) | 32.12 / 11.09 |
Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
Overall Wheelbase (engine & tender) (ft / m) | 32.12 / 11.09 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 36,400 / 16,511 |
Weight on Drivers (lbs / kg) | 108,640 / 49,266 |
Engine Weight (lbs / kg) | 181,440 / 98,112 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 181,440 / 98,112 |
Tender Water Capacity (gals / ML) | 2311 / 13.64 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.85 / 6.60 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 60 / 30 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 67 / 1702 |
Boiler Pressure (psi / kPa) | 210 / 1450 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 28" / 406x711 |
Tractive Effort (lbs / kg) | 19,097 / 8662.26 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.69 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 85 - 2" / 51 |
Flues (number - dia) (in / mm) | 21 - 5.25" / 133 |
Flue/Tube length (ft / m) | 11.37 / 3.47 |
Firebox Area (sq ft / m2) | 121 / 11.24 |
Grate Area (sq ft / m2) | 24.60 / 2.29 |
Evaporative Heating Surface (sq ft / m2) | 955 / 88.72 |
Superheating Surface (sq ft / m2) | 240 / 22.30 |
Combined Heating Surface (sq ft / m2) | 1195 / 111.02 |
Evaporative Heating Surface/Cylinder Volume | 146.56 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5166 |
Same as above plus superheater percentage | 6199 |
Same as above but substitute firebox area for grate area | 30,492 |
Power L1 | 13,388 |
Power MT | 815.04 |