Ferrovie dello Stato 0-6-2 Locomotives in Italy


Class Details by Steve Llanso of Sweat House Media

Class Gruppo 900 (Locobase 6622)

Data from US Military Railway Service Equipment Data Book for Italian Locomotives [inter alia] supplied by Allen Stanley in May 2005 from his extensive Rail Data Exchange.

Radial tank that seems to have been a single-unit class; see [link] (visited 30 June 2005). It was credited by the MRS with 10,560 lb of steam per hour and rated at 460 hp at 27 mph.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassGruppo 900
Locobase ID6622
RailroadFerrovie dello Stato (FS)
CountryItaly
Whyte0-6-2T
Number in Class1
Road Numbers9011
GaugeStd
Number Built1
Builder
Year1889
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)10.06 / 3.07
Engine Wheelbase (ft / m)17.23 / 5.25
Ratio of driving wheelbase to overall engine wheelbase 0.58
Overall Wheelbase (engine & tender) (ft / m)17.23 / 5.25
Axle Loading (Maximum Weight per Axle) (lbs / kg)31,900 / 14,470
Weight on Drivers (lbs / kg)94,160 / 42,710
Engine Weight (lbs / kg)117,920 / 53,488
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1485 / 5.63
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.20 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)52 / 26
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)53.10 / 1350
Boiler Pressure (psi / kPa)142 / 980
High Pressure Cylinders (dia x stroke) (in / mm)17.72" x 23.63" / 450x600
Tractive Effort (lbs / kg)16,866 / 7650.30
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.58
Heating Ability
Tubes (number - dia) (in / mm)173 - 1.969" / 50
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.40 / 3.78
Firebox Area (sq ft / m2)71.02 / 6.60
Grate Area (sq ft / m2)17.11 / 1.59
Evaporative Heating Surface (sq ft / m2)1066 / 99.07
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1066 / 99.07
Evaporative Heating Surface/Cylinder Volume158.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2430
Same as above plus superheater percentage2430
Same as above but substitute firebox area for grate area10,085
Power L12648
Power MT186.00

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