Turin-Genoa Articulated Locomotives in Italy


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 3573)

These were originally built as 0-6-0s, but the success of the 0-4+4-0 supplied a few year earlier inspired a joining of several engines into twin-engine sets.. Wiener (1930) for data.


Class unknown (Locobase 3571)

Data from Lionel Wiener, Articulated Locomotives (1930) and Wikipedia's "Mastodonte dei Giovi (locomotive)" entry at [], last accessed 19 August 2019.

So-called duplex or twin locomotives, this design consisted of two engines joined together at a pivot and operated by one crew. Stephenson supplied the 0-4-0 locomotives.

In service on a section of line that featured 3 1/2% grades, the "Mastodonte de Genovi" proved quite successful according to Wiener, a finding contrary to the Stephenson Company's expectations.

Still in service, all ten were taken into the Strade Ferrate d' Alta Italia (SFAI) in 1865.


Class unknown (Locobase 3572)

Cockerill's slight variation on the twin locomotives design intended for 3 1/2% grades in the Italian mountains. Wiener (1930) for data.

Principal Dimensions by Steve Llanso of Sweat House Media

Classunknownunknownunknown
Locobase ID3573 3571 3572
RailroadTurin-GenoaTurin-GenoaTurin-Genoa
CountryItalyItalyItaly
Whyte0-6+6-00-4+4-00-4+4-0
Number in Class33
Road Numbers
GaugeStdStdStd
Number Built33
BuilderCMIRobert Stephenson & CoCMI
Year185618541854
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.87 / 2.12 8.50 / 2.59
Engine Wheelbase (ft / m)33.06 / 8.28
Ratio of driving wheelbase to overall engine wheelbase 0.24
Overall Wheelbase (engine & tender) (ft / m) / 8.28
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)72,576 / 32,92061,600 / 27,94163,616 / 28,856
Engine Weight (lbs / kg)72,576 / 32,92061,600 / 27,94163,616 / 28,856
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)72,576 / 32,92061,600 / 27,94163,616 / 28,856
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)20 / 1026 / 1327 / 13.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 121939 / 99142.50 / 1080
Boiler Pressure (psi / kPa)114 / 7.90114 / 7.90111 / 7.70
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559 (4)13" x 22" / 330x559 (4)13.5" x 22" / 343x559 (4)
Tractive Effort (lbs / kg)22,739 / 10314.2518,476 / 8380.5817,802 / 8074.86
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.19 3.33 3.57
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)11.20 / 1.04
Evaporative Heating Surface (sq ft / m2)1082 / 100.56779 / 72.40770 / 71.56
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1082 / 100.56779 / 72.40770 / 71.56
Evaporative Heating Surface/Cylinder Volume105.67115.24105.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1277
Same as above plus superheater percentage1277
Same as above but substitute firebox area for grate area
Power L1
Power MT

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