Data from "Madras & South Mahratta Railway Type 4.6.0", Locomotives Constructed by Kitson & Co,. Ltd (Leeds: n.d.). Works numbers were 4927-4930 in 1913.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 774 |
| Locobase ID | 21005 |
| Railroad | Madras & Southern Mahratta |
| Country | India |
| Whyte | 4-6-0 |
| Number in Class | 4 |
| Road Numbers | 774-777 |
| Gauge | 5'6" |
| Number Built | 4 |
| Builder | Kitson & Co |
| Year | 1913 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 14.25 / 4.34 |
| Engine Wheelbase (ft / m) | 27.25 / 8.31 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 57.25 / 17.45 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 112,448 / 51,006 |
| Engine Weight (lbs / kg) | 150,752 / 68,380 |
| Tender Loaded Weight (lbs / kg) | 102,032 / 46,281 |
| Total Engine and Tender Weight (lbs / kg) | 252,784 / 114,661 |
| Tender Water Capacity (gals / ML) | 4800 / 18.18 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.25 / 7.50 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 62 / 31 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 74 / 1880 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 26" / 508x660 |
| Tractive Effort (lbs / kg) | 21,503 / 9753.61 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.23 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 158 / 14.68 |
| Grate Area (sq ft / m2) | 32 / 2.97 |
| Evaporative Heating Surface (sq ft / m2) | 1775 / 164.90 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1775 / 164.90 |
| Evaporative Heating Surface/Cylinder Volume | 187.75 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5760 |
| Same as above plus superheater percentage | 5760 |
| Same as above but substitute firebox area for grate area | 28,440 |
| Power L1 | 6023 |
| Power MT | 354.26 |