Data from Gustav Reder (Michael Reynolds, trans), The world of steam locomotives (New York: Putnam, 1974).
This is a later, and larger version of Stephenson's Patentee engine design executed by Sharp, Roberts, & Company. Sharpies soon competed with Stephenson locomotives in several countries. The Baden State Railroad bought six in 1839 and nine more were built in the Karlsruhe shops to the Baden State railroad design. Many Sharpies had a bowed frame over the driving axle, which enabled the axle horns to be shortened and welded directly to the frame. The Sharp locomotive described in the specifications is an 1845 example fitted with Stephenson's link motion.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | Sharpie |
| Locobase ID | 667 |
| Railroad | several |
| Country | Germany |
| Whyte | 2-2-2 |
| Number in Class | 15 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 15 |
| Builder | Sharp Brothers |
| Year | 1845 |
| Valve Gear | Stephenson |
| 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) | |
| Engine Weight (lbs / kg) | 47,407 / 21,503 |
| 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) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 66 / 1676 |
| Boiler Pressure (psi / kPa) | 75 / 5.20 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 4945 / 2243.02 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 12.60 / 1.17 |
| Evaporative Heating Surface (sq ft / m2) | 920 / 85.50 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 920 / 85.50 |
| Evaporative Heating Surface/Cylinder Volume | 197.67 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 945 |
| Same as above plus superheater percentage | 945 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |