Data from Titre Exposition universelle internationale de 1878 a Paris. Rapports du jury internationale..Volume Groupe VI - Classe 64. Rapport sur le materiel des chemins de fer. p. 50 (cnum.cnam.fr/CGI/fpage.cgi?8XAE277-11.1/54/100/312/0/0 (accessed 1 September 2005).
The jury notes that these locomotives were intended for the Geneva-Pisa, Geneva-Ventemilligia, and Bologna-Porreta lines where the ruling profile included 1.2% adverse grades and curve radii of 250-300 meters (820-985 ft).
The jury also refers to 40 2-4-0s that had been displayed at the 1872 Vienna Exposition and comments that the current class differs in having smaller drivers and a leading bogie.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 5 |
Locobase ID | 6939 |
Railroad | Alta Italia (SFAI) |
Country | Italy |
Whyte | 4-4-0 |
Number in Class | 10 |
Road Numbers | 5 |
Gauge | Std |
Number Built | 10 |
Builder | Floridsdorf |
Year | 1877 |
Valve Gear | Gooch |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | 19.69 / 6 |
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) | 55,116 / 25,000 |
Engine Weight (lbs / kg) | 88,185 / 40,000 |
Tender Loaded Weight (lbs / kg) | 51,809 / 23,500 |
Total Engine and Tender Weight (lbs / kg) | 139,994 / 63,500 |
Tender Water Capacity (gals / ML) | 2112 / 8 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 71.70 / 1820 |
Boiler Pressure (psi / kPa) | 145 / 1000 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16.93" x 22.05" / 430x560 |
Tractive Effort (lbs / kg) | 10,864 / 4927.83 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.07 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 179 - 1.969" / 50 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 11.48 / 3.50 |
Firebox Area (sq ft / m2) | 97.92 / 9.10 |
Grate Area (sq ft / m2) | 26.90 / 2.50 |
Evaporative Heating Surface (sq ft / m2) | 1153 / 107.19 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1153 / 107.19 |
Evaporative Heating Surface/Cylinder Volume | 200.69 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 3901 |
Same as above plus superheater percentage | 3901 |
Same as above but substitute firebox area for grate area | 14,198 |
Power L1 | 4954 |
Power MT | 396.32 |