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Salzkammergut Local Railway and Scheeberg Railway class Z
Austrian Federal Railways (BBÖ) class Zz and Austrian Federal Railways class 999
Austria-Hungary | 1893 | 11 produced
999.106 "Berganemone" in September 1987 in the mountain station of the Schafbergbahn
999.106 "Berganemone" in September 1987 in the mountain station of the Schafbergbahn
TARS631

The class Z refers to rack locomotives in the Abt system which had three axles and a pure rack drive. They were based on the H 2/3, which the SLM had built for the Monte Generoso railway. Six locomotives were built for the Salzkammergut-Lokalbahn for use on the Schafberg railway, whose bodies were inclined by 17 percent according to the line. The EWA purchased five more for the Schneeberg railway, which were only inclined by twelve percent.

For downhill running they had an additional water tank to cool the cylinders when the Riggenbach counter-pressure brake was used. The Schneeberg railway equipped its locomotives with petroleum firing from 1900 onwards, which was undone during the First World War. In the fifties they received Giesl ejectors. Today three locomotives are still operational.

General
Built1893-1900
ManufacturerKrauss
Axle config4-0-2RT (Abt) 
Gauge3 ft 3 3/8 in (Meter gauge)
Dimensions and Weights
Length14 ft 10 15/16 in
Wheelbase10 ft 4 13/16 in
Fixed wheelbase10 ft 4 13/16 in
Service weight39,683 lbs
Adhesive weight0 lbs
Water capacity317 us gal
Fuel capacity1,323 lbs (coal)
Power
Power sourcesteam
Estimated power208 hp (155 kW)
Top speed7 mph
Starting effort28,690 lbf
Power Plant
Boiler pressure203 psi
Expansion typesimple
Cylinderstwo, 12 5/8 x 23 5/8 in
Boiler
Grate area9.7 sq ft
Firebox area43.3 sq ft
Tube heating area334.8 sq ft
Evaporative heating area378 sq ft
Total heating area378 sq ft
Calculated Values
steam locomotive
cog railway
tank locomotive
passenger
last changed: 09/2023
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