Data from Data from "Locomotives for India," Engineer, Volume 188, No 24 (9 December 1949), p. 673.
This quartet of modestly scaled Pacifics was originally intended for the Morbi Railway, which was incorporated by the Saurashta. Its Belpaire firebox's heating surface included that supplied by three arch tubes. Engineer's report also mentioned the leading bogie which was of "normal Indian design" with volute side springs so configured as to place constantly the spring loading on the axle bearings. The truck's side play allowance was 5 1/2" (140 mm).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 20336 |
| Railroad | Saurashta |
| Country | India |
| Whyte | 4-6-2 |
| Number in Class | 4 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 4 |
| Builder | WG Bagnall |
| Year | 1949 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.52 |
| Engine Wheelbase (ft / m) | 25.67 / 7.82 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.19 |
| Overall Wheelbase (engine & tender) (ft / m) | 46.42 / 14.15 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 20,160 / 9144 |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 100,744 / 45,697 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2640 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4.40 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 22" / 381x559 |
| Tractive Effort (lbs / kg) | 15,778 / 7156.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 122 - 2" / 51 |
| Flues (number - dia) (in / mm) | 12 - 5.5" / 140 |
| Flue/Tube length (ft / m) | 15.50 / 4.72 |
| Firebox Area (sq ft / m2) | 127 / 11.80 |
| Grate Area (sq ft / m2) | 25 / 2.32 |
| Evaporative Heating Surface (sq ft / m2) | 1205 / 111.95 |
| Superheating Surface (sq ft / m2) | 273 / 25.36 |
| Combined Heating Surface (sq ft / m2) | 1478 / 137.31 |
| Evaporative Heating Surface/Cylinder Volume | 267.80 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4500 |
| Same as above plus superheater percentage | 5310 |
| Same as above but substitute firebox area for grate area | 26,975 |
| Power L1 | 13,751 |
| Power MT | |