Data from Alexandre Louis Deghilage, Origine de la Locomotive (Paris: Imprierie A Broise et Courtier, 1886), p.37 and from Felix Mathias, Etudes sur Machines Locomotives de Sharp et Roberts Comparees a Celles d'Autres Constructeurs ...(Paris, Librairie Scientifique-Industrielle de L. Mathias, 1844).
Like many locomotives in this early period, this was a small and underpowered engine. It had small slide valves over the cylinders.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Hercules |
| Locobase ID | 11338 |
| Railroad | Hull-Selby |
| Country | Great Britain |
| Whyte | 0-6-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | Shepherd & Todd |
| Year | 1844 |
| Valve Gear | |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| 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) | |
| Weight on Drivers (lbs / kg) | 14,991 / 6800 |
| Engine Weight (lbs / kg) | 33,069 / 15,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 8 / 4 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 65.70 / 1669 |
| Boiler Pressure (psi / kPa) | 87 / 600 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 24.02" x 26.38" / 610x670 |
| Tractive Effort (lbs / kg) | 17,131 / 7770.50 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 0.88 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 133 - 2.008" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.19 / 2.80 |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | |
| Evaporative Heating Surface (sq ft / m2) | |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | |
| Evaporative Heating Surface/Cylinder Volume | |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | |
| Same as above plus superheater percentage | |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |