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.
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.
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 | |||
|---|---|---|---|
| Class | 12/02012 | 17 | 32 |
| Locobase ID | 21301 | 21315 | 21316 |
| Railroad | Minho e Douro (CP) | Caminhos de Ferro em Portugal (CP) | Caminhos de Ferro em Portugal (CP) |
| Country | Portugal | Portugal | Portugal |
| Whyte | 2-4-0T | 2-4-0 | 2-4-0 |
| Number in Class | 5 | 6 | |
| Road Numbers | 12-16/02012-02016 | 17-22 | 32-37 |
| Gauge | Via Larga | Via Larga | Via Larga |
| Number Built | 5 | 6 | 6 |
| Builder | several | Compagnie Belge | Schneider-Creusot |
| Year | 1878 | 1862 | 1864 |
| Valve Gear | Stephenson | Stephenson | Stephenson |
| 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 / 3.22 | 11.78 / 3.59 | 11.55 / 3.52 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 | 0.49 | 0.50 |
| Overall Wheelbase (engine & tender) (ft / m) | 10.56 / 3.22 | 32.95 / 10.04 | 27.56 / 8.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 33,620 / 15,250 | 26,455 / 12,000 | |
| Weight on Drivers (lbs / kg) | 67,241 / 30,500 | 55,997 / 25,400 | 50,816 / 23,050 |
| Engine Weight (lbs / kg) | 90,389 / 41,000 | 83,555 / 37,900 | 71,650 / 32,500 |
| Tender Loaded Weight (lbs / kg) | 44,092 / 20,000 | 48,281 / 21,900 | |
| Total Engine and Tender Weight (lbs / kg) | 127,647 / 57,900 | 119,931 / 54,400 | |
| Tender Water Capacity (gals / ML) | 1188 / 4.50 | 1848 / 7 | 1848 / 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 / 28 | 47 / 23.50 | 42 / 21 |
| Geometry Relating to Tractive Effort | |||
| Driver Diameter (in / mm) | 62 / 1575 | 66.80 / 1696 | 62.40 / 1585 |
| Boiler Pressure (psi / kPa) | 144 / 980 | 129.30 / 880 | 144 / 980 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15.98" x 22.01" / 406x559 | 16.54" x 22.05" / 420x560 | 16.14" x 23.62" / 410x600 |
| Tractive Effort (lbs / kg) | 11,096 / 5033.07 | 9925 / 4501.91 | 12,069 / 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" / 50 | 181 - 1.969" / 50 | 171 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | |||
| Flue/Tube length (ft / m) | 9.35 / 2.85 | 13.12 / 4 | 13.65 / 4.16 |
| Firebox Area (sq ft / m2) | 82.24 / 7.64 | 77.82 / 7.23 | 82.88 / 7.70 |
| Grate Area (sq ft / m2) | 17.01 / 1.58 | 16.15 / 1.50 | 14.21 / 1.32 |
| Evaporative Heating Surface (sq ft / m2) | 832 / 77.30 | 1302 / 120.96 | 1166 / 108.33 |
| Superheating Surface (sq ft / m2) | |||
| Combined Heating Surface (sq ft / m2) | 832 / 77.30 | 1302 / 120.96 | 1166 / 108.33 |
| Evaporative Heating Surface/Cylinder Volume | 162.84 | 237.44 | 208.47 |
| Computations Relating to Power Output (More Information) | |||
| Robert LeMassena's Power Computation | 2449 | 2088 | 2046 |
| Same as above plus superheater percentage | 2449 | 2088 | 2046 |
| Same as above but substitute firebox area for grate area | 11,843 | 10,062 | 11,935 |
| Power L1 | 3621 | 4440 | 4232 |
| Power MT | 237.44 | 349.61 | 367.21 |