Swiss Central 0-4-0 Locomotives in Switzerland
Class Details by Steve Llanso of Sweat House Media
Class Eb 2/4 (Locobase 789)
Data from Wikiepdia [
], last accessed 2 July 2010.
Works numbers were 353-364 in 857, 481 in 1859, and 1179-1182 in 1872.
See 9582 for an overview of the Engerth supporting-tender design of semi-articulated locomotives. This particular class was lighter and smaller than the more numerous Ec 2/5s described in Locobase 9582. But like the Ec 2/5s, they had lightly built locomotive frames that led to the nickname "Spinne" (Spider).
Like the Ec 2/5s, these later received new boilers in which the grate and firebox had more area and the boiler 2 fewer tubes.
The SCB took delivery of the first 12 in 1857, the Compagnie de Jura Industrielle an identical engine in 1859. Four more came from Esslingen in 1872. All of them received names of rivers in 1859
The first of the class was retired in 1888, the last in 1902.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Eb 2/4 |
| Locobase ID | 789 |
| Railroad | Swiss Central |
| Country | Switzerland |
| Whyte | 0-4-0+4 |
| Number in Class | 17 |
| Road Numbers | 15-26, 56, 71-74 |
| Gauge | Std |
| Number Built | 17 |
| Builder | Esslingen |
| Year | 1857 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.38 / 2.25 |
| 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) | 23,700 / 10,750 |
| Weight on Drivers (lbs / kg) | 47,399 / 21,500 |
| Engine Weight (lbs / kg) | 84,878 / 38,500 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1082 / 4.10 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 60 / 1524 |
| Boiler Pressure (psi / kPa) | 130.50 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.17" x 22.09" / 360x561 |
| Tractive Effort (lbs / kg) | 8200 / 3719.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.78 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 125 - 2.17" / 55 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.43 / 3.79 |
| Firebox Area (sq ft / m2) | 62.41 / 5.80 |
| Grate Area (sq ft / m2) | 8.61 / 0.80 |
| Evaporative Heating Surface (sq ft / m2) | 944 / 87.70 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 944 / 87.70 |
| Evaporative Heating Surface/Cylinder Volume | 234.13 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1124 |
| Same as above plus superheater percentage | 1124 |
| Same as above but substitute firebox area for grate area | 8145 |
| Power L1 | 4065 |
| Power MT | |