Meridionali 4-4-0 Locomotives in Italy
Class Details by Steve Llanso of Sweat House Media
Class Gruppo 170/Gruppo 540 FS 2 (Locobase 7410)
Data from Titre Exposition universelle internationale de 1889 a Paris. Rapports du jury internationale. Auteur - Volume France. Ministere du Commerce, de l'industrie. Picard, Alfred, ed. Volume Groupe VI - -Outillage et precedes des industries mecaniques. Electricite (5e partie) Classes 60 a 63. Rapport sur le materiel des chemins de fer; tables beginning on p. 183 ([
] (accessed 1 September 2005).
Additional info from Tutto Treno rivista's website page [] (visited 4 February 2006), which has elevation drawings of every Ferro Strato locomotive and details on when and how many were built. The drawing shows a typical Eight-wheeler of the time with firebox over the driving axles and large steam dome over the front driving axle. The valve gear, which lay inside the frame, operated the outside-mounted slide valves through rocking levers.
1703, 1706, 1709, 1711, 1713, 1715 (Gruppo 540 FS 2) were built with a smaller boiler with less heating surface area. They had the same wheelbases but weighed less
Thirteen more 545 (FS 2) were delivered in 1890-1891 were larger, but had similar external dimensions and appearance.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Gruppo 170/Gruppo 540 FS 2 |
| Locobase ID | 7410 |
| Railroad | Meridionali |
| Country | Italy |
| Whyte | 4-4-0 |
| Number in Class | 6 |
| Road Numbers | 5403, 5406, 5409, 5411, 5413, 5415 |
| Gauge | Std |
| Number Built | 6 |
| Builder | Borsig |
| Year | 1882 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.97 / 2.43 |
| Engine Wheelbase (ft / m) | 21.98 / 6.70 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.36 |
| Overall Wheelbase (engine & tender) (ft / m) | 43.65 / 13.30 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 32,408 / 14,700 |
| Weight on Drivers (lbs / kg) | 65,036 / 29,500 |
| Engine Weight (lbs / kg) | 101,192 / 45,900 |
| Tender Loaded Weight (lbs / kg) | 65,477 / 29,700 |
| Total Engine and Tender Weight (lbs / kg) | 166,669 / 75,600 |
| Tender Water Capacity (gals / ML) | 2376 / 9 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.30 / 4.80 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 75.60 / 1920 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.91" x 23.62" / 455x600 |
| Tractive Effort (lbs / kg) | 12,352 / 5602.78 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.27 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 181 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.81 / 3.60 |
| Firebox Area (sq ft / m2) | 88.26 / 8.20 |
| Grate Area (sq ft / m2) | 21.74 / 2.02 |
| Evaporative Heating Surface (sq ft / m2) | 1189 / 110.46 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1189 / 110.46 |
| Evaporative Heating Surface/Cylinder Volume | 172.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3152 |
| Same as above plus superheater percentage | 3152 |
| Same as above but substitute firebox area for grate area | 12,798 |
| Power L1 | 4325 |
| Power MT | 293.22 |