Wurttembergische 4-6-0 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class D / BR 38.1 (Locobase 5825)
Data from Maurice Demoulin, Locomotive Actuelle ... (Paris: Librairie Polytechnique Ch.Beranger, 1906), p 242-243. Additional information from Christian Lindecke's website [
] (visited 28 Nov 2003) (translated by Google). To handle heavier passenger trains on the Bretten-Stuttgart line, the K.W.St.E had to move from two coupled axles to three and these 4-cylinder compounds were the result. They had Belpaire fireboxes and a staggered cylinder alignment that featured the inside HP cylinders driving the first axle and outside LP cylinders between the leading bogie and the first coupled axle, but driving the second axle.
Performance met the requirements: 250 tons at 60 km/h up a 1% grade and 90 km/h (55 mph) on the level.
At the end of World War I, Poland was given 4 of the class and France two. Eight were classified by DRG as BR 38 101-109, but they were out of service within the year.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | D / BR 38.1 |
| Locobase ID | 5825 |
| Railroad | Wurttembergische (Wurttemberg) Staatsbahn |
| Country | Germany |
| Whyte | 4-6-0 |
| Number in Class | 15 |
| Road Numbers | 421-434 / BR 38 101-BR 38 108 |
| Gauge | Std |
| Number Built | 15 |
| Builder | |
| Year | 1898 |
| Valve Gear | 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) | 33,069 / 15,000 |
| Weight on Drivers (lbs / kg) | 98,767 / 44,800 |
| Engine Weight (lbs / kg) | 141,978 / 64,400 |
| 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) | 55 / 27.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 65 / 1650 |
| Boiler Pressure (psi / kPa) | 198.70 / 1370 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.96" x 22.05" / 380x560 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 23.62" x 22.05" / 600x560 |
| Tractive Effort (lbs / kg) | 18,303 / 8302.11 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.40 |
| 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) | 24.75 / 2.30 |
| Evaporative Heating Surface (sq ft / m2) | 1915 / 178 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1915 / 178 |
| Evaporative Heating Surface/Cylinder Volume | 426.89 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4918 |
| Same as above plus superheater percentage | 4918 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |