2-4-0 Steam Locomotives in Portugal

Caminhos de Ferro em Portugal / Minho e Douro


Class Details by Steve Llanso of Sweat House Media

Class 12/02012 (Locobase 21301)

Data from [], last accessed 30 November 2008; and "Locomotivas de Vapor de Via Larga"p. 15 , posted by Guarda Freio at 18:01, 23 September 2018, at [], last accessed 25 January 2026. Works numbers were 1797-1798 in 1878, 3855 in 1896, and 4583-4584 in 1904.

Note on heating surface area:

NB: When tube heating surface area is measured using 44 mm (1.75") inside (fire side) diameter, total evaporative heating surface area including firebox amounted to 77.3 sq m (832 sq ft ). Locobase used the outside (water side) diameter.


Class 17 (Locobase 21315)

Data from "Locomotivas de Vapor de Via Larga"p. 47 , posted by Guarda Freio at 18:01, 23 September 2018, at [], last accessed 25 January 2026. Works numbers were 1-6 in 1862.

The CB in Brussels, Belgium combined Ateliers Charles Evrard & Cie de Bruxelles et des Etablissements Parmentier & Cie de La Croyère in 1859.

This sextet of passenger six-wheelers inaugurated the firm's new name. Two years later, an order from a Spanish railway was diverted to the CFM (Locobase 21316).

The 22 (ex-6) left the roster in 1923. The other five remained in service until the early 1950s.

Note on heating surface area:

NB: When tube heating surface area is measured using 44 mm (1.75") inside (fire side) diameter, total evaporative heating surface area including firebox amounted to 110.9 sq m (1,194 sq ft ). Locobase used the outside (water side) diameter.


Class 32 (Locobase 21316)

Data from "Locomotivas de Vapor de Via Larga"p. 23

, posted by Guarda Freio at 18:01, 23 September 2018, at [], last accessed 25 January 2026. Works numbers were 840-845 in 1864.

Spain's Barcelona a Gerona ordered this sextet in 1864, but did take delivery, so Schneider delivered them to the CFP. They arrived at a convenient time for the CFP in supplementing its passenger power.

Note on heating surface area:

NB: When tube heating surface area is measured using 45 mm (1.75") inside (fire side) diameter, total evaporative heating surface area including firebox amounted to 109.3 sq m (1,170 sq ft ). Locobase used the outside (water side) diameter.

Principal Dimensions by Steve Llanso of Middle Run Media
Class12/020121732
Locobase ID21301 21315 21316
RailroadMinho e Douro (CP)Caminhos de Ferro em Portugal (CP)Caminhos de Ferro em Portugal (CP)
CountryPortugalPortugalPortugal
Whyte2-4-0T2-4-02-4-0
Number in Class56
Road Numbers12-16/02012-0201617-2232-37
GaugeVia LargaVia LargaVia Larga
Number Built566
BuilderseveralCompagnie BelgeSchneider-Creusot
Year187818621864
Valve GearStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 5.35 / 1.63 5.81 / 1.77 5.77 / 1.76
Engine Wheelbase (ft / m)10.56 / 3.2211.78 / 3.5911.55 / 3.52
Ratio of driving wheelbase to overall engine wheelbase 0.51 0.49 0.50
Overall Wheelbase (engine & tender) (ft / m)10.56 / 3.2232.95 / 10.0427.56 / 8.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)33,620 / 15,25026,455 / 12,000
Weight on Drivers (lbs / kg)67,241 / 30,50055,997 / 25,40050,816 / 23,050
Engine Weight (lbs / kg)90,389 / 41,00083,555 / 37,90071,650 / 32,500
Tender Loaded Weight (lbs / kg)44,092 / 20,00048,281 / 21,900
Total Engine and Tender Weight (lbs / kg)127,647 / 57,900119,931 / 54,400
Tender Water Capacity (gals / ML)1188 / 4.501848 / 71848 / 7
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.20 / 2 5.50 / 5 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)56 / 2847 / 23.5042 / 21
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62 / 157566.80 / 169662.40 / 1585
Boiler Pressure (psi / kPa)144 / 980129.30 / 880144 / 980
High Pressure Cylinders (dia x stroke) (in / mm)15.98" x 22.01" / 406x55916.54" x 22.05" / 420x56016.14" x 23.62" / 410x600
Tractive Effort (lbs / kg)11,096 / 5033.079925 / 4501.9112,069 / 5474.41
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.06 5.64 4.21
Heating Ability
Tubes (number - dia) (in / mm)178 - 1.732" / 50181 - 1.969" / 50171 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.35 / 2.8513.12 / 413.65 / 4.16
Firebox Area (sq ft / m2)82.24 / 7.6477.82 / 7.2382.88 / 7.70
Grate Area (sq ft / m2)17.01 / 1.5816.15 / 1.5014.21 / 1.32
Evaporative Heating Surface (sq ft / m2)832 / 77.301302 / 120.961166 / 108.33
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)832 / 77.301302 / 120.961166 / 108.33
Evaporative Heating Surface/Cylinder Volume162.84237.44208.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation244920882046
Same as above plus superheater percentage244920882046
Same as above but substitute firebox area for grate area11,84310,06211,935
Power L1362144404232
Power MT237.44349.61367.21

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