Hanichener Kohlenbahn 4-4-0 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class VIIIb T (Locobase 3850)
Data from Windbergbahn Railway website at [
] . supplies the limited information. See also "Kohlenbahnlokomotive (sSchsische Gattung H VIIIb T)" on the
Die Windbergbahn - SSchsische Semmeringbahn website at [], last accessed 16 July 2022. Works numbers were 77-79 in 1857, 118 in September 1858, and 271 in 1866. (Production lists ascribe the order to the Albert-Bahn.
Based on Locobase's very limited German, it seems that these engines -- ELBE, WINDBERG, STEIGER, FREIBERG, and BURGK (which had a slightly longer wheelbase at 8.14 ft) -- came to the Windberg line by 1857.
Later information from the 2022 link told much more about this unusual locomotive. Unlike many 2/4 gek. locomotives of the time, this engine used a leading bogie to negotiate curves as tight as 57 metres on this coal road. (Tests using 2-4-0 engine Friederich August "failed miserably" as Google translates the account.)
The small locomotive showed its cylinders and Allan valve gear outside of the boiler and smokebox. Two safety valve stands of identical shape sat over the boiler's middle and the firebox.
Chief Engineer Guido Brescius successfully coordinated the requirements of his railway and Hartmann's production capability and early experience with the first three engines showed that the locomotive could haul ten loaded wagons down the valley and fifteen empty one back up. Traffic grew quickly and the HK bourght
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | VIIIb T |
| Locobase ID | 3850 |
| Railroad | Hanichener Kohlenbahn |
| Country | Germany |
| Whyte | 4-4-0 |
| Number in Class | 5 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 5 |
| Builder | Hartmann |
| Year | 1857 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.08 / 2.46 |
| 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) | 47,187 / 21,404 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 496 / 1.88 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.50 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 38 / 965 |
| Boiler Pressure (psi / kPa) | 90 / 620 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.75" x 18" / 324x457 |
| Tractive Effort (lbs / kg) | 5891 / 2672.12 |
| 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) | |
| 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 | |