Austrian State 4-8-0 Locomotives in Austria

Class Details by Steve Llanso of Sweat House Media

Class 113 / 33.1 (Locobase 2469)

Data from [], accessed 14 August 2006.See also O S Nock, "Austrian State Railways", Railways at the Zenith of Steam-1920-1940 (New York: Macmillan Company, 1970-pub in England by Blandford Press) Plate 10, page 109. When the class fell into the hands of the Third Reich, the DRG classed them as BR 33.10. Works numbers were (StEG) were 4693-4702 in 1923, 4703-4710 in 1924 (113.01-113.18), 4735-4744 in 1925 (113.26-113.35), and 4820-4824 (113.36-113.40) in 1927. Floridsdorf delivered works numbers 2866-2872 (113.19-113.25) in 1924.

Derived from the Sudbahn's pair of trial horses (Locobase 2470), these Twelve-wheelers were the OBB's standard passenger engines in the Austrian mountains. OS Nock described them as "singularly angular and unaesthetic locomotives" and Eagleson and Zeil (1973) claimed that Austrian locomotives, along with Greek engines, were the filthiest in Europe.

Unattractive they may have been, but the locomotives generated a healthy amount of power and were well-liked by their crews despite their relatively low maximum speed of 85 km/h (53 mph). "They may not have been handsome engines," added Nock, "but they certainly proved worth extensive modernisation in teh early 1950s, when they were fitted with the Giesl ejector [exhaust system]."

A tally in 1953 showed 33 of the 40 still in service and the last wasn't retired until 1968.

Many were later fitted with the Giesl ejector nozzle stack.

Principal Dimensions by Steve Llanso of Sweat House Media

Class113 / 33.1
Locobase ID2469
RailroadAustrian State
Number in Class40
Road Numbers113.01-113.40/33.101-33.139
Number Built40
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)18.21 / 5.55
Engine Wheelbase (ft / m)31.30 / 9.54
Ratio of driving wheelbase to overall engine wheelbase 0.58
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)131,043 / 59,440
Engine Weight (lbs / kg)187,745 / 85,160
Tender Loaded Weight (lbs / kg)96,651 / 43,840
Total Engine and Tender Weight (lbs / kg)284,396 / 129,000
Tender Water Capacity (gals / ML)7128 / 27
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.50 / 1740
Boiler Pressure (psi / kPa)217.60 / 15
High Pressure Cylinders (dia x stroke) (in / mm)22.05" x 28.35" / 560x720
Tractive Effort (lbs / kg)37,218 / 16881.82
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.52
Heating Ability
Tubes (number - dia) (in / mm)151 - 1.969" / 50
Flues (number - dia) (in / mm)32 - 5.236" / 133
Flue/Tube length (ft / m)17.06 / 5.20
Firebox Area (sq ft / m2)173.30 / 16.10
Grate Area (sq ft / m2)48.12 / 4.47
Evaporative Heating Surface (sq ft / m2)2196 / 204
Superheating Surface (sq ft / m2)748 / 69.50
Combined Heating Surface (sq ft / m2)2944 / 273.50
Evaporative Heating Surface/Cylinder Volume175.26
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10,471
Same as above plus superheater percentage13,089
Same as above but substitute firebox area for grate area47,138
Power L119,419
Power MT1306.79

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