Ruegener Kleinbahn 0-8-0 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class Mh 51 / BR 99.4631 (Locobase 5854)
Data from [
] and home.snafu.de/zipkat/52Mh/52Mh.html which describes Mh 52 as a little 8-coupled tank (Works # 2951). The Ruegener site notes that that engine followed an older sister from 1913.
Although the pair started as saturated-steam locos, Zipkat of the Ruegener says the two were later superheated like the Mh 53 (Locobase 4930) that also operates on the museum road.
Class Mh 53 / BR 99.4633 (Locobase 4930)
Data from website home.snafu.de/zipkat/53Mh/53Mh.html, supplemented by [], last accessed on 12 May 2011.
Zipkat describes this as a little 8-coupled tank (Works # 3851) that served on the Ruegener into the 1970s. Comparison with Locobase 5854 shows that this was simply a superheated version of the Vulkan that worked on the Ruegener beginning in 1914.
Mh 53 was saved as a historical relic in 1977. In 1992, the engine was overhauled by RAW Goerlitz.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | Mh 51 / BR 99.4631 | Mh 53 / BR 99.4633 |
| Locobase ID | 5854 | 4930 |
| Railroad | Ruegener Kleinbahn | Ruegener Kleinbahn |
| Country | Germany | Germany |
| Whyte | 0-8-0T | 0-8-0T |
| Number in Class | 2 | 1 |
| Road Numbers | 51-52 / 99 4631-99 4632 | 99 4633 |
| Gauge | 75 cm | 75 cm |
| Number Built | 2 | 1 |
| Builder | Vulkan | Vulkan |
| Year | 1913 | 1925 |
| Valve Gear | Heusinger | Heusinger |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 11.15 / 3.40 | 11.32 / 3.45 |
| Engine Wheelbase (ft / m) | 11.15 / 3.40 | 11.32 / 3.45 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | ||
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 51,809 / 23,500 | 56,218 / 25,500 |
| Engine Weight (lbs / kg) | 51,809 / 23,500 | 56,218 / 25,500 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | ||
| Tender Water Capacity (gals / ML) | 581 / 2.20 | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.90 / 1 | 0.90 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 22 / 11 | 23 / 11.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 33.50 / 850 | 33.50 / 850 |
| Boiler Pressure (psi / kPa) | 169.70 / 1170 | 171.10 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13.78" x 15.75" / 350x400 | 13.78" x 15.75" / 350x400 |
| Tractive Effort (lbs / kg) | 12,878 / 5841.37 | 12,984 / 5889.45 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.02 | 4.33 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 48 - 1.772" / 45 | |
| Flues (number - dia) (in / mm) | 15 - 4.252" / 108 | 15 - 4.252" / 108 |
| Flue/Tube length (ft / m) | 9.02 / 2.75 | |
| Firebox Area (sq ft / m2) | 37.88 / 3.52 | 37.88 / 3.52 |
| Grate Area (sq ft / m2) | 9.68 / 0.90 | 9.68 / 0.90 |
| Evaporative Heating Surface (sq ft / m2) | 502 / 46.70 | 363 / 33.77 |
| Superheating Surface (sq ft / m2) | 140 / 13.03 | |
| Combined Heating Surface (sq ft / m2) | 502 / 46.70 | 503 / 46.80 |
| Evaporative Heating Surface/Cylinder Volume | 184.65 | 133.52 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1643 | 1656 |
| Same as above plus superheater percentage | 1643 | 2120 |
| Same as above but substitute firebox area for grate area | 6428 | 8296 |
| Power L1 | 2410 | 6369 |
| Power MT | 410.21 | 999.06 |