Data from Krupp im Dienst der Dampflokomotive (Essen, Germany: 1940), p 100.. Works numbers were 1109-1110 in 1930.
Part of a series of Indian Standard Railway designs created in the mid-1920s to meet Indian railway requirements. This light passenger engine ran on the same wheel arrangement as the broad-gauge XT (Locobase 4264). Unlike that 77-member class, YT consisted only of the pair delivered to the North West Railways
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | YT |
| Locobase ID | 21284 |
| Railroad | Indian Railways- East Indian Railway |
| Country | India |
| Whyte | 0-4-2T |
| Number in Class | 2 |
| Road Numbers | 511-512 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Krupp |
| Year | 1930 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6.50 / 1.98 |
| Engine Wheelbase (ft / m) | 14.83 / 4.52 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 14.83 / 4.52 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 17,637 / 8000 |
| Weight on Drivers (lbs / kg) | 36,156 / 16,400 |
| Engine Weight (lbs / kg) | 54,234 / 24,600 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 961 / 3.64 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 215.90 / 1470 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8.5" x 22.01" / 216x559 |
| Tractive Effort (lbs / kg) | 5722 / 2595.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.32 |
| 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) | 7.32 / 0.68 |
| Evaporative Heating Surface (sq ft / m2) | 253 / 23.50 |
| Superheating Surface (sq ft / m2) | 86 / 8 |
| Combined Heating Surface (sq ft / m2) | 339 / 31.50 |
| Evaporative Heating Surface/Cylinder Volume | 175.02 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1580 |
| Same as above plus superheater percentage | 1975 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |