Lokalbahn AG Munchen 0-6-0 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class BR 98.71 (Locobase 9576)
Data from Wikipedia ([
], last accessed 28 September 2008), supplemented by Albert Gieseler at [], last accessed 9 May 2011.
These small compound tanks served the Munich lokalbahn area for 60 years. They operated between Marktoberdorf and Fnssen for decades. Once the DRG took over the LAG operations, they were given Baureihe designations and moved to the Augsburger Localbahn. They were withdrawn in 1957.
Class Ptl 3/3 // BR 98.76 (Locobase 5947)
Data from Christian Lindecke's website [] (visited 28 Nov 2003) (translated by Google), supplemented by Albert Gieseler at [], last accessed 9 May 2011.
Little lokalbahn locomotives that went into service near Murnau. By 1904, the LAG (aka LAY) had been absorbed by the K.Bay.Sts.B and the pair reclassified PtL 3/3 (merely descriptive of arrangement and application).
Still in service two decades later, the locomotives were redesignated by the DRG as 98 7691-98 7692 and continued to run until 1927.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | BR 98.71 | Ptl 3/3 // BR 98.76 |
| Locobase ID | 9576 | 5947 |
| Railroad | Lokalbahn AG Munchen | Lokalbahn AG Munchen |
| Country | Germany | Germany |
| Whyte | 0-6-0T | 0-6-0T |
| Number in Class | 2 | 2 |
| Road Numbers | 98 7101-7802 / 42-43 | 9-10 / 1875-1876 /98 7691 |
| Gauge | Std | Std |
| Number Built | 2 | 2 |
| Builder | Krauss | Krauss |
| Year | 1895 | 1889 |
| Valve Gear | Heusinger | Heusinger |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 8.86 / 2.70 | 9.51 / 2.90 |
| Engine Wheelbase (ft / m) | 8.86 / 2.70 | 9.51 / 2.90 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 8.86 / 2.70 | 9.51 / 2.90 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 21,826 / 9900 | 20,944 / 9500 |
| Weight on Drivers (lbs / kg) | 64,154 / 29,100 | 60,186 / 27,300 |
| Engine Weight (lbs / kg) | 64,154 / 29,100 | 60,186 / 27,300 |
| Tender Loaded Weight (lbs / kg) | ||
| Total Engine and Tender Weight (lbs / kg) | 64,154 / 29,100 | 60,186 / 27,300 |
| Tender Water Capacity (gals / ML) | 924 / 3.50 | 317 / 1.20 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.30 / 1 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 36 / 18 | 33 / 16.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 36.20 / 920 | 36.20 / 920 |
| Boiler Pressure (psi / kPa) | 179.80 / 1240 | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.17" x 19.69" / 360x500 (1) | 13.78" x 19.69" / 350x500 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 21.65" x 19.69" / 550x500 (1) | |
| Tractive Effort (lbs / kg) | 11,685 / 5300.23 | 15,276 / 6929.09 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.49 | 3.94 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 144 - 1.772" / 45 | |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 9.19 / 2.80 | 9.19 / 2.80 |
| Firebox Area (sq ft / m2) | 43.04 / 4 | 43.04 / 4 |
| Grate Area (sq ft / m2) | 10.76 / 1 | 10.76 / 1 |
| Evaporative Heating Surface (sq ft / m2) | 582 / 54.06 | 587 / 54.60 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 582 / 54.06 | 587 / 54.60 |
| Evaporative Heating Surface/Cylinder Volume | 323.89 | 172.71 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 1935 | 1872 |
| Same as above plus superheater percentage | 1935 | 1872 |
| Same as above but substitute firebox area for grate area | 7739 | 7489 |
| Power L1 | 2062 | 2478 |
| Power MT | 212.58 | 272.31 |