Data from the Rete Sicula website [] ... (visited 5 July 2004).
One clear advantage of going to an eight-coupled layout was the significant increase in boiler size. A prototype had a slightly larger grate (2.15 sq m) and less evaporative heating surface (151.3 sq m), but the 24 production locomotives -- procured in two sottogruppi -- had the dimensions shown. The factors show that there was still some room for growth in this design.
At the time of the Ferrovie dello Stato takeover in 1905, 4 units were under repair and the others were divided among Catania (9), Caltanissetta (7), and Messina (5).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Gruppo F / Gruppo 410 |
| Locobase ID | 6215 |
| Railroad | Strade Ferrate della Sicilia / FS |
| Country | Italy |
| Whyte | 0-8-0 |
| Number in Class | 25 |
| Road Numbers | RS 301-325 / Gr 4101-25 |
| Gauge | Std |
| Number Built | 25 |
| Builder | |
| Year | 1893 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.70 |
| Engine Wheelbase (ft / m) | 12.70 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 38.33 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,644 |
| Weight on Drivers (lbs / kg) | 115,743 / 52,500 |
| Engine Weight (lbs / kg) | 115,743 / 52,500 |
| Tender Loaded Weight (lbs / kg) | 47,399 / 21,500 |
| Total Engine and Tender Weight (lbs / kg) | 163,142 / 74,000 |
| Tender Water Capacity (gals / ML) | 2508 / 9.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 47.20 / 1200 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 25.98" / 480x660 |
| Tractive Effort (lbs / kg) | 24,233 / 10991.92 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.78 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 21.52 / 2 |
| Evaporative Heating Surface (sq ft / m2) | 1680 / 156.13 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1680 / 156.13 |
| Evaporative Heating Surface/Cylinder Volume | 199.15 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3120 |
| Same as above plus superheater percentage | 3120 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |