Indian Railways 2-6-0 Locomotives in India
Class Details by Steve Llanso of Sweat House Media
Class IRS/YK (Locobase 4269)
Part of a series of designs created in the mid-1920s to meet Indian railway requirements. This was a little narrow-gauge Mogul that apparently used the same running gear as the 0-6-2 YF, but used a front truck instead of the trailer.
[
] notes that these had "...a wider firebox and other improvements to handle low-grade coal."
Dr. Jonathan Smith of Iowa State ([] ) for data on this design.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | IRS/YK |
| Locobase ID | 4269 |
| Railroad | Indian Railways |
| Country | India |
| Whyte | 2-6-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Metre |
| Number Built | |
| Builder | several |
| Year | 1925 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 51,520 / 23,369 |
| Engine Weight (lbs / kg) | 69,440 / 31,497 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43 / 1092 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 22" / 356x559 |
| Tractive Effort (lbs / kg) | 13,638 / 6186.10 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.78 |
| 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) | 14 / 1.30 |
| Evaporative Heating Surface (sq ft / m2) | 449 / 41.73 |
| Superheating Surface (sq ft / m2) | 120 / 11.15 |
| Combined Heating Surface (sq ft / m2) | 569 / 52.88 |
| Evaporative Heating Surface/Cylinder Volume | 114.55 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2240 |
| Same as above plus superheater percentage | 2710 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |