Data from "Ten-Coupled Tank Locomotive, Bombay Port Trust Railway", Locomotive Magazine, Volume XXVIII [28], (15 September 1922), p. 255.See also the Nasmyth Wilson production list at [],%20Gaskell%20and%20Company&nojs=1, last accessed 24 October 2017. (Thanks to David Cormack for his 17 November 2020 email correcting the wheel arrangement for this pair.) Works numbers were 1357-1358 in 1922.
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | H |
Locobase ID | 20313 |
Railroad | Bombay Port Trust |
Country | India |
Whyte | 2-10-2T |
Number in Class | 2 |
Road Numbers | 25-26 |
Gauge | 5'6" |
Number Built | 2 |
Builder | Nasmyth Wilson |
Year | 1922 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 19.67 / 6 |
Engine Wheelbase (ft / m) | 34.67 / 10.57 |
Ratio of driving wheelbase to overall engine wheelbase | 0.57 |
Overall Wheelbase (engine & tender) (ft / m) | 34.67 / 10.57 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 38,976 / 17,679 |
Weight on Drivers (lbs / kg) | |
Engine Weight (lbs / kg) | 236,600 / 107,320 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 236,600 / 107,320 |
Tender Water Capacity (gals / ML) | 2400 / 9.09 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 51 / 1295 |
Boiler Pressure (psi / kPa) | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 23.5" x 26" / 597x660 |
Tractive Effort (lbs / kg) | 43,076 / 19538.97 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
Heating Ability | |
Tubes (number - dia) (in / mm) | 266 - 2.25" / 57 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 13.50 / 4.11 |
Firebox Area (sq ft / m2) | 183 / 17 |
Grate Area (sq ft / m2) | 32.30 / 3 |
Evaporative Heating Surface (sq ft / m2) | 2298 / 213.49 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 2298 / 213.49 |
Evaporative Heating Surface/Cylinder Volume | 176.06 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 5814 |
Same as above plus superheater percentage | 5814 |
Same as above but substitute firebox area for grate area | 32,940 |
Power L1 | 3766 |
Power MT |