Data from Arturo Gallico, "Italian National Exhibition at Milan", Engineer, Volume 52 (26 August 1881), p. 147.
NB: Tube heating surface area calculated from the water side (external diameter) forms part of the evaporative heating surface area in the specifications. It is derived from the given diameter of the tubes. If calculated from the fire side, the total evaporative heating surface area was 96.7 sq m (1,041 sq ft), of which 87.6 sq m (943 sq ft) came from the internal surfaces of the tubes.
Gallico cited this exhibition engine as an example of how far Italian locomotive builders had coming in designing and building competitive engines. In contrast to his embarrassment at the display at 1878's Paris Exhibition, he now felt able to say "these works have contributed a very fine, substantially built, and well finished passenger engine." He conceded that one could "notice occasional roughness in the finish of several parts" and pointed to the "want of high-class machine tools" as the cause.
(Locobase notices that the dimensions of this design follow very closely those of the ten Alta Italia produced by the Vienna Locomotive Works--Floridsdorf in 1877.)
Torino's operating sphere included lines "having sharp curves and considerable inclines, such as, for example, the Mediterranean coast line."
In short, Gallico later concluded, "Locomotives are generally looked upon as among the most difficult of mechanical constructions, and consequently the partial success attained in this class by Italian ironworks is an indication of very considerable advancement generally."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Torino |
| Locobase ID | 20810 |
| Railroad | North Italy |
| Country | Italy |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 1 |
| Builder | Turin shops |
| Year | 1881 |
| 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) | 39.04 / 11.90 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 55,997 / 25,400 |
| Engine Weight (lbs / kg) | |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2165 / 8.20 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 71.70 / 1820 |
| Boiler Pressure (psi / kPa) | 159.50 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.93" x 22.05" / 430x560 |
| Tractive Effort (lbs / kg) | 11,950 / 5420.44 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.69 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 177 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.48 / 3.50 |
| Firebox Area (sq ft / m2) | 97.95 / 9.10 |
| Grate Area (sq ft / m2) | 23.68 / 2.20 |
| Evaporative Heating Surface (sq ft / m2) | 1144 / 106.30 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1144 / 106.30 |
| Evaporative Heating Surface/Cylinder Volume | 199.13 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3777 |
| Same as above plus superheater percentage | 3777 |
| Same as above but substitute firebox area for grate area | 15,623 |
| Power L1 | 5420 |
| Power MT | 426.77 |