Great Eastern 0-8-0 Locomotives in Great_Britain
Class Details by Steve Llanso of Sweat House Media
Class 20 (Locobase 10597)
Data from "New 0-8-0 Mineral Locomotive", Railway and Locomotive Engineering, Volume 20, No 7 (July 1907), p. 335. See also "A55 Class 0-10-0WT 1903; 0-8-0 1906" under the menu selection for James Holden in the Great Eastern Railway Society's website at [
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When the Decapod (Locobase 3247) proved too heavy, just too much engine for the service for which Holden had built, it was "rebuilt" at Stratford with only two cylinders. The resulting eight-coupled tender engine had a bizarrely long wheelbase, mitigated, says the LM report, by fitting radial axle boxes on both end axles. Indeed, the layout looked closer to that of an 0-4-4-0 than a typical eight-coupled with closely space axles. The Belpaire firebox remained part of the equipage, but the boiler's length shrank as did its tube count.
So modified as the GER's only 0-8-0 ever, the 20 ran for a few more years, but was scrapped in December 2013 because "its boiler needed heavy repair", according to the GER Society.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 20 |
| Locobase ID | 10597 |
| Railroad | Great Eastern (GER) |
| Country | Great Britain |
| Whyte | 0-8-0 |
| Number in Class | 1 |
| Road Numbers | 20 |
| Gauge | Std |
| Number Built | |
| Builder | Stratford Works |
| Year | 1906 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 23.25 / 7.09 |
| Engine Wheelbase (ft / m) | 23.25 / 7.09 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 42.25 / 12.88 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 35,252 / 15,990 |
| Weight on Drivers (lbs / kg) | 121,716 / 55,210 |
| Engine Weight (lbs / kg) | 121,716 / 55,210 |
| Tender Loaded Weight (lbs / kg) | 85,680 / 38,864 |
| Total Engine and Tender Weight (lbs / kg) | 207,396 / 94,074 |
| Tender Water Capacity (gals / ML) | 4200 / 15.91 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 24" / 470x610 (3) |
| Tractive Effort (lbs / kg) | 34,910 / 15834.93 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.49 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 285 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.27 / 4.04 |
| Firebox Area (sq ft / m2) | 131.40 / 12.21 |
| Grate Area (sq ft / m2) | 22.90 / 2.13 |
| Evaporative Heating Surface (sq ft / m2) | 1870 / 173.79 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1870 / 173.79 |
| Evaporative Heating Surface/Cylinder Volume | 166.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4122 |
| Same as above plus superheater percentage | 4122 |
| Same as above but substitute firebox area for grate area | 23,652 |
| Power L1 | 3655 |
| Power MT | 264.81 |