Ferrovie dello Stato 0-4-0 Locomotives in Italy
Class Details by Steve Llanso of Sweat House Media
Class Gruppo 801 (Locobase 6619)
Data from the US Military Railway Service's Equipment Data Book for Italian Locomotives supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. [
] shows that the octet was delivered over the course of 4 years.
Likely of English origin (most of the measurements are ft-in-sq ft). Outfitted with a very tall and slender tapered stack and a canopy over the footplate. Rated at 150 hp at 15 mph (24 km/h) and generating 3,520 lb (1,560 kg) steam per hour.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Gruppo 801 |
| Locobase ID | 6619 |
| Railroad | Ferrovie dello Stato (FS) |
| Country | Italy |
| Whyte | 0-4-0T |
| Number in Class | 8 |
| Road Numbers | 8011-8018 |
| Gauge | Std |
| Number Built | 8 |
| Builder | |
| Year | 1880 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 20,283 / 9200 |
| Weight on Drivers (lbs / kg) | 39,352 / 17,850 |
| Engine Weight (lbs / kg) | 39,352 / 17,850 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 528 / 2 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 34.60 / 880 |
| Boiler Pressure (psi / kPa) | 72.50 / 500 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11.02" x 17.32" / 280x440 |
| Tractive Effort (lbs / kg) | 3746 / 1699.16 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 10.51 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 106 - 1.535" / 39 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.36 / 1.94 |
| Firebox Area (sq ft / m2) | 47.56 / 4.42 |
| Grate Area (sq ft / m2) | 5.81 / 0.54 |
| Evaporative Heating Surface (sq ft / m2) | 334 / 31 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 334 / 31 |
| Evaporative Heating Surface/Cylinder Volume | 174.69 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 421 |
| Same as above plus superheater percentage | 421 |
| Same as above but substitute firebox area for grate area | 3448 |
| Power L1 | 1250 |
| Power MT | 140.06 |