See also Robert Tufnell, The Illustrated Encyclopedia of Railway Locomotives (London: Quarto Publishing Ltd, 1986).
Four-cylinder Hudson tank by George Hughes for the newly minted grouping London, Midland, & Scottish. Based on the Dreadnought-class Ten-wheelers, the tanks shared the Belpaire boiler design. "They were free and fast engines," says Robert Tufnell, "but their weight limitation restricted their utility to operation between Manchester and Blackpool, and, although 20 had been ordered, only 10 were in fact built."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 11110 |
| Locobase ID | 2361 |
| Railroad | LMS |
| Country | Great Britain |
| Whyte | 4-6-4T |
| Number in Class | 10 |
| Road Numbers | 11110-11119 |
| Gauge | Std |
| Number Built | 10 |
| Builder | LMS |
| Year | 1924 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.58 / 4.14 |
| Engine Wheelbase (ft / m) | 40.33 / 12.29 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.34 |
| Overall Wheelbase (engine & tender) (ft / m) | 40.33 / 12.29 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 125,440 / 56,899 |
| Engine Weight (lbs / kg) | 223,888 / 101,554 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 223,888 / 101,554 |
| Tender Water Capacity (gals / ML) | 2400 / 9.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.90 / 3.50 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 70 / 35 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 75 / 1905 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.5" x 26" / 419x660 (4) |
| Tractive Effort (lbs / kg) | 28,880 / 13099.76 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.34 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 14.75 / 4.50 |
| Firebox Area (sq ft / m2) | 180 / 16.72 |
| Grate Area (sq ft / m2) | 29.60 / 2.75 |
| Evaporative Heating Surface (sq ft / m2) | 1997 / 185.53 |
| Superheating Surface (sq ft / m2) | 343 / 31.87 |
| Combined Heating Surface (sq ft / m2) | 2340 / 217.40 |
| Evaporative Heating Surface/Cylinder Volume | 155.18 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5328 |
| Same as above plus superheater percentage | 6127 |
| Same as above but substitute firebox area for grate area | 37,260 |
| Power L1 | 10,462 |
| Power MT | 551.61 |