Data from Reder (1974).
Leader of four outside-frame Cramptons built by Maffei in 1853. Locobase suspects that the data shown in the current entry actually marks the 1925 replica built in Maffei's shops. The heating surface area is considerably bigger. For the original group of 18, see Locobase 8251.Works numbers 609-611, 621-624 in 1863; 658-663 in 1864.
Polnitz was one of fourteen engines built by Emil Kessler of Esslingen for the Bavarian Palatinate. It was similar in layout to Die Pfalz (built ten years earlier), but had a smaller boiler and steam pipes girdling its boiler like a horsecollar.
Principal Dimensions by Steve Llanso of Sweat House Media | ||
|---|---|---|
| Class | Die Pfalz | Polnitz |
| Locobase ID | 555 | 556 |
| Railroad | Bavarian Palatinate | Bavarian Palatinate |
| Country | Germany | Germany |
| Whyte | 4-2-0 | 4-2-0 |
| Number in Class | 4 | 14 |
| Road Numbers | 61-64 | |
| Gauge | Std | Std |
| Number Built | 4 | 14 |
| Builder | Maffei | Kessler |
| Year | 1853 | 1863 |
| Valve Gear | Stephenson | |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | ||
| Engine Wheelbase (ft / m) | 13 / 3.96 | 13 / 3.96 |
| 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) | 23,153 / 10,500 | 20,286 / 9202 |
| Engine Weight (lbs / kg) | 60,086 / 27,255 | 53,361 / 24,204 |
| 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) | 39 / 19.50 | 34 / 17 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 72 / 1830 | 72 / 1829 |
| Boiler Pressure (psi / kPa) | 106.30 / 7.50 | 92.60 / 6.50 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 24" / 381x610 | 14" x 24" / 356x610 |
| Tractive Effort (lbs / kg) | 6777 / 3074.00 | 5142 / 2332.37 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.42 | 3.95 |
| 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) | 10.50 / 0.98 | 10.50 / 0.98 |
| Evaporative Heating Surface (sq ft / m2) | 859 / 79.83 | 738 / 68.59 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 859 / 79.83 | 738 / 68.59 |
| Evaporative Heating Surface/Cylinder Volume | 174.99 | 172.59 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1116 | 972 |
| Same as above plus superheater percentage | 1116 | 972 |
| Same as above but substitute firebox area for grate area | ||
| Power L1 | ||
| Power MT | ||