Data from "Locomotiva a Vapor - Serie E1 (201)" diagram, photo, and specifications page, last accessed 8 March 2026. See also filhodaCP post "CP E1+CP 214, Regua, 1970" in flickr at [], last accessed 8 March 2026. Works number was 19339 in 1922.
FilhodaCP wrote that the E1 (formerly Minho e Douro 201) "spent many years as a shunter at Regua", a division point on the Corgo line. It entered service sized for the 900 mm (35.4") gauge, the 201's track expanded by 100 mm (4.2") in 1930.
The national railway purchased the 201 second-hand in 1943 after it had supported the construction of the port of Leixoes. It later went on display at Regua.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 201/E 1 |
| Locobase ID | 21313 |
| Railroad | Minho e Douro |
| Country | Portugal |
| Whyte | 0-4-0T |
| Number in Class | 1 |
| Road Numbers | 201/E 1 |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Henschel |
| Year | 1922 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.27 / 1.30 |
| Engine Wheelbase (ft / m) | 4.27 / 1.30 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4.27 / 1.30 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 9500 / 4309 |
| Weight on Drivers (lbs / kg) | 41,888 / 19,000 |
| Engine Weight (lbs / kg) | 41,888 / 19,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 502 / 1.90 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.90 / 0.80 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 35 / 17.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 31.90 / 810 |
| Boiler Pressure (psi / kPa) | 173.30 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.2" x 16.93" / 310x430 |
| Tractive Effort (lbs / kg) | 11,636 / 5278.01 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.60 |
| 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) | 8.61 / 0.80 |
| Evaporative Heating Surface (sq ft / m2) | 415 / 38.60 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 415 / 38.60 |
| Evaporative Heating Surface/Cylinder Volume | 181.17 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1492 |
| Same as above plus superheater percentage | 1492 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |