Data from Christian Lindecke's website [] (visited 2 Jan 2004) (translated by Google) and the US Military Railway Service Equipment Data Book for German Locomotives supplied by Allen Stanley from his extensive Rail Data Exchange in March 2004.
A decade after it had bought 7 local-traffic tanks, the Pfalzbahn returned to Krauss for 8 more. These had the same boiler, firebox, and cylinders, but operated at a higher boiler pressure and put more weight on the drivers.
When the DRG began numbering in 1923, this sub-class was numbered 98 681-688. At least three of this octet survived World War II, two (682 & 686) serving the Passau installation of the German BundesWehr until 1950 and 681 serving the airbase at Ludwigshafen until 1954.
Data from Christian Lindecke's website [] (visited 2 Jan 2004) (translated by Google).
As the neighbor of the K.Bay.Sts.B, the Pfalzbahn has similar requirements for a local-traffic tank engine. So Krauss delivered this septet. The heavier and more powerful repeat order is shown in Locobase 5810.
When the DRG began numbering in 1923, this sub-class was numbered 98 651-657. Retirements came in 1940.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | T 4 1 (1908) / BR 98.681 | T 4 1 / BR 98.6 |
| Locobase ID | 5810 | 5809 |
| Railroad | Pfalzbahn (Palatinate) | Pfalzbahn (Palatinate) |
| Country | Germany | Germany |
| Whyte | 0-6-2T | 0-6-2T |
| Number in Class | 8 | 7 |
| Road Numbers | ||
| Gauge | Std | Std |
| Number Built | 8 | 7 |
| Builder | Krauss | Krauss |
| Year | 1908 | 1895 |
| Valve Gear | Heusinger | Heusinger |
| 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) | 29,983 / 13,600 | 26,896 / 12,200 |
| Weight on Drivers (lbs / kg) | 88,626 / 40,200 | 80,689 / 36,600 |
| Engine Weight (lbs / kg) | 113,317 / 51,400 | 104,058 / 47,200 |
| 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) | 49 / 24.50 | 45 / 22.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 39.20 / 996 | 39.20 / 996 |
| Boiler Pressure (psi / kPa) | 188.50 / 1300 | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15.98" x 20" / 406x508 | 15.98" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 20,875 / 9468.75 | 19,269 / 8740.28 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.25 | 4.19 |
| 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) | 15.28 / 1.42 | 15.28 / 1.42 |
| Evaporative Heating Surface (sq ft / m2) | 880 / 81.77 | 880 / 81.77 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 880 / 81.77 | 880 / 81.77 |
| Evaporative Heating Surface/Cylinder Volume | 189.55 | 189.55 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2880 | 2659 |
| Same as above plus superheater percentage | 2880 | 2659 |
| Same as above but substitute firebox area for grate area | ||
| Power L1 | ||
| Power MT | ||