Localbahn AG 2-6-0 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class LAG 17-49 / BR 98 73, 74 (Locobase 9578)
Data from [
] ..._49, last accessed 28 September 2007.
These engines had a Krauss-Helmholtz truck including the Bissel truck and first coupled axle. Two more were delivered in 1900 with larger dimensions; see Locobase 5813.
Seven of the engines operated on the Munich LAG while 4 more ran on the Lausitzer Railway Society (LEAG). All of them were taken into the DRG in 1938 and redesignated BR98 73 for the Bavarian engines, BR 98 74 for the LEAG. All but 98 7307 survived World War II and retired between in 1946-1950.
Class LAG 59-60 / BR 98.73 (Locobase 5813)
Data from Christian Lindecke's [] (visited 12 Dec 2003), supplemented by [] . Lindecke offers no commentary on this class. Expanded in every respect from the earlier LAG 0-6-2T (Locobase 5812), this is a virtually identical cross-compound version of the D X local-traffic tanks delivered to the K.Bay.Sts.B.
Two were completed to larger dimensions; see Locobase 5813.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | LAG 17-49 / BR 98 73, 74 | LAG 59-60 / BR 98.73 |
| Locobase ID | 9578 | 5813 |
| Railroad | Localbahn AG | Localbahn AG |
| Country | Germany | Germany |
| Whyte | 2-6-0T | 2-6-0T |
| Number in Class | 11 | 2 |
| Road Numbers | 17..49 | 98 7308-98 7309 |
| Gauge | Std | Std |
| Number Built | 11 | 2 |
| Builder | Krauss | Krauss |
| Year | 1890 | 1900 |
| Valve Gear | Heusinger | Heusinger |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | ||
| Engine Wheelbase (ft / m) | 15.75 / 4.80 | 17.39 / 5.30 |
| Ratio of driving wheelbase to overall engine wheelbase | ||
| Overall Wheelbase (engine & tender) (ft / m) | 15.75 / 4.80 | 17.39 / 5.30 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 20,062 / 9100 | 24,030 / 10,900 |
| Weight on Drivers (lbs / kg) | 59,525 / 27,000 | 69,005 / 31,300 |
| Engine Weight (lbs / kg) | 77,162 / 35,000 | 91,933 / 41,700 |
| Tender Loaded Weight (lbs / kg) | 19,864 / 9010 | |
| Total Engine and Tender Weight (lbs / kg) | 97,026 / 44,010 | |
| Tender Water Capacity (gals / ML) | 1056 / 4 | 1148 / 4.35 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.50 / 1 | 1.80 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 | 38 / 19 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 42.90 / 1090 | 39.20 / 996 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14.17" x 19.69" / 360x500 (1) | 15.75" x 19.69" / 400x500 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 21.65" x 19.69" / 550x500 (1) | 24.41" x 19.69" / 620x500 (1) |
| Tractive Effort (lbs / kg) | 11,138 / 5052.12 | 15,188 / 6889.17 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.34 | 4.54 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | ||
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 11.48 / 3.50 | 10.83 / 3.30 |
| Firebox Area (sq ft / m2) | 62.73 / 5.83 | 64.34 / 5.98 |
| Grate Area (sq ft / m2) | 13.99 / 1.30 | 15.06 / 1.40 |
| Evaporative Heating Surface (sq ft / m2) | 712 / 66.20 | 774 / 71.91 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 712 / 66.20 | 774 / 71.91 |
| Evaporative Heating Surface/Cylinder Volume | 396.23 | 348.65 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2841 | 3059 |
| Same as above plus superheater percentage | 2841 | 3059 |
| Same as above but substitute firebox area for grate area | 12,740 | 13,067 |
| Power L1 | 3551 | 2727 |
| Power MT | 394.55 | 261.37 |