Data from "The Engines for working the London Extension of the M Sheffield & L Ry", The Railway Engineer, Volume XVI, No 6 ( June 1895), p. 169. Works numbers were 3694-3703.
This class of radial tanks was designed by Harry Pollitt for the suburban services to London. Like the goods engines awarded to Beyer, Peacock at the same time (Locobase 13577), these had Belpaire fireboxes. Although they were ordered at the same time and assigned the lowest boiler numbers, they were in fact completed after all of the goods engines were delivered. By then, the MS & L had acquired its new identity as the Great Central Railway.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 13576 |
| Railroad | Great Central |
| Country | Great Britain |
| Whyte | 2-4-2T |
| Number in Class | 10 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 10 |
| Builder | Beyer, Peacock |
| Year | 1898 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.58 / 2.62 |
| Engine Wheelbase (ft / m) | 23.46 / 7.15 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 |
| Overall Wheelbase (engine & tender) (ft / m) | 23.46 / 7.15 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 40,096 / 18,187 |
| Weight on Drivers (lbs / kg) | 76,832 / 34,850 |
| Engine Weight (lbs / kg) | 132,160 / 59,947 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 132,160 / 59,947 |
| Tender Water Capacity (gals / ML) | 1632 / 6.18 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 64 / 32 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 67 / 1702 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 |
| Tractive Effort (lbs / kg) | 17,099 / 7755.99 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.49 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 233 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.05 / 3.37 |
| Firebox Area (sq ft / m2) | 98 / 9.10 |
| Grate Area (sq ft / m2) | 18.80 / 1.75 |
| Evaporative Heating Surface (sq ft / m2) | 1278 / 118.73 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1278 / 118.73 |
| Evaporative Heating Surface/Cylinder Volume | 166.89 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3008 |
| Same as above plus superheater percentage | 3008 |
| Same as above but substitute firebox area for grate area | 15,680 |
| Power L1 | 4125 |
| Power MT | 236.73 |