Strade Ferrate della Sicilia / FS 0-8-0 Locomotives in Italy

Class Details by Steve Llanso of Sweat House Media

Class Gruppo F / Gruppo 410 (Locobase 6215)

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 Sweat House Media

ClassGruppo F / Gruppo 410
Locobase ID6215
RailroadStrade Ferrate della Sicilia / FS
Number in Class25
Road NumbersRS 301-325 / Gr 4101-25
Number Built25
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.70
Engine Wheelbase (ft / m)12.70
Ratio of driving wheelbase to overall engine wheelbase1
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 / 10
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 Volume199.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3120
Same as above plus superheater percentage3120
Same as above but substitute firebox area for grate area
Power L1
Power MT

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