Data from Christian Lindecke's website [] (visited 15 May 2004) (translated by Google), US Military Railway Service Equipment Data Book -- German Locomotives supplied by Allen Stanley from his extensive Rail Data Exchange, Wikipedia ([
], last accessed 28 September 2008), supplemented and amended by [
], last accessed on 14 May 2011.
All-adhesion examples of the typical Krauss localbahn locomotive delivered to the K.Bay.Sts.Bahn over 16 years. This little 8-coupled tank came in three batches. The first 53, built from 1911-1922, weighed in at 45,178 kg (99,600 lb) while the next 64 gained about a short ton to measure as shown in the specifications. These were delivered in 1923 (30), 1924 (17), and 1927 (1927). As noted in Locobase 6035, 29 were modified with a leading axle to raise the maximum speed from 40 km/h (25 mph) to 55 km/h.
Described by the Bavarian Branchlines site ([], 18 May 2004) as "rugged and reliable", virtually all of the class remained in service for many years after World War II, the last being retired in 1969.
NB: Gieseler uses the same boiler data for all of the batches, which seems unlikely. However, the data apparently do apply to that great majority of engines in the class that were delivered in 1922-1927.
On the other hand, Wikipedia and other sources (notably the dampflok-bilder site that presents photographs and data -- []) agree on a different set of slightly different data. Heating surface area is given as 60.99 sq m, superheater at 16.93 sq m, for a combined heating surface area of 77.92 sq m).
The differences are small and Locobase chose Gieseler because he also presents the boiler dimensions and tube counts.
The dampflok-bilder site's photos show how little the outward appearance of the design changed over the years
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | GtL 4/4 / BR 98.8-9 |
Locobase ID | 6036 |
Railroad | Bavarian State |
Country | Germany |
Whyte | 0-8-0T |
Number in Class | 117 |
Road Numbers | 98 801-98 917 |
Gauge | Std |
Number Built | 117 |
Builder | Krauss |
Year | 1911 |
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) | 25,794 / 11,700 |
Weight on Drivers (lbs / kg) | 101,853 / 46,200 |
Engine Weight (lbs / kg) | 120,152 / 54,500 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1663 / 6.30 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 39.40 / 1000 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.11" x 20.08" / 460x508 |
Tractive Effort (lbs / kg) | 24,721 / 11213.27 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.12 |
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) | 13.99 / 1.30 |
Evaporative Heating Surface (sq ft / m2) | 661 / 61.40 |
Superheating Surface (sq ft / m2) | 203 / 18.90 |
Combined Heating Surface (sq ft / m2) | 864 / 80.30 |
Evaporative Heating Surface/Cylinder Volume | 110.41 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2434 |
Same as above plus superheater percentage | 2994 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |