Gotthardbahn 2-4-0 Locomotives in Switzerland


Class Details by Steve Llanso of Sweat House Media

Class C 2/3 (Locobase 5119)

Data from [], last accessed 19 January 2017, (First viewed August 2002). The oddities of later numbering gave the earlier four engines (works #865-868) numbers 21-24, while the 1883 trio (works #1067-1069) bore 18-20.

1889-1893 saw the installation of Westinghouse airbrakes. The six that remained in service in 1901 received a slightly larger boiler of 1,404 sq ft with a firebox area of 81.76 sq ft (7.6 sq m) -- it held 182 tubes. Of the 1874 group, 21 was scrapped in 1896, the other three in 1905. 18 followed in 1906, but the other two endured until 1913.


Class E 2/3 (Locobase 5131)

Data from [], last accessed 19 January 2017, (First viewed August 2002).

This stray, single 2-4-0 was of a slightly earlier vintage than the Karlsruhe-built engines. Was she a trial horse? In any case, she persisted until 1914.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassC 2/3E 2/3
Locobase ID5119 5131
RailroadGotthardbahnGotthardbahn
CountrySwitzerlandSwitzerland
Whyte2-4-02-4-0
Number in Class71
Road Numbers18-241000
GaugeStdStd
Number Built71
BuilderKarlsruheKrauss
Year18741882
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)10.99 / 3.3514.11 / 4.30
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)53,352 / 24,20059,084 / 26,800
Engine Weight (lbs / kg)75,839 / 34,40083,776 / 38,000
Tender Loaded Weight (lbs / kg)41,888 / 19,000
Total Engine and Tender Weight (lbs / kg)117,727 / 53,400
Tender Water Capacity (gals / ML)1848 / 71531 / 5.80
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.30 / 3 1.90 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)44 / 2249 / 24.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62.20 / 158060.60 / 1539
Boiler Pressure (psi / kPa)145 / 10174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)17.32" x 23.67" / 440x60015.75" x 23.62" / 400x600
Tractive Effort (lbs / kg)14,070 / 6382.0514,300 / 6486.38
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.79 4.13
Heating Ability
Tubes (number - dia) (in / mm)172 - 2" / 51203 - 1.73" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)14.11 / 4.3010.50 / 3.20
Firebox Area (sq ft / m2)71.02 / 6.6061.33 / 5.70
Grate Area (sq ft / m2)15.06 / 1.4016.14 / 1.50
Evaporative Heating Surface (sq ft / m2)1346 / 125.101027 / 95.45
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1346 / 125.101027 / 95.45
Evaporative Heating Surface/Cylinder Volume208.53192.82
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation21842808
Same as above plus superheater percentage21842808
Same as above but substitute firebox area for grate area10,29810,671
Power L139624400
Power MT327.44328.36

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