Portuguese Government 2-4-6-0 Locomotives in Portugal


Class Details by Steve Llanso of Sweat House Media

Class E (Locobase 3636)

Data from Wiener (1930). See also [], the website of the Swiss rail preservation group La Traction

One of a very few articulated locomotive designs in which the two sets of drivers are not equal in number. This was a straightforward Mallet tank that was supplied to the Portuguese Railways in two separate years -- 1910 and 1923.(The later set of seven were somewhat smaller; see Locobase 9993.

Wiener (1930) comments on the unusual mixed arrangement and adds that the engines later had 2-axle tenders added to them. He wasn't certain this happened, and photographs from Ziel and Eagleson (1973) suggested the little tenders were later removed. Many remained in service in the late 1960s on mixed-traffic service.


Class E 211 (Locobase 9993)

Data from [], the website of the Groupe d'Etude pour les Chemins de fer de Provence.

Locobase 3636 shows the earlier set of oddly arranged Mallet tanks delivered to the CFP in 1910.

This current set of additional locomotives were had shorter boilers than those of the 1910 engines and slightly taller drivers. Some of the class remained in mixed-traffice service until 1981.

See also [], the website of the Swiss rail preservation group La Traction

Principal Dimensions by Steve Llanso of Middle Run Media

ClassEE 211
Locobase ID3636 9993
RailroadPortuguese GovernmentPortuguese Government
CountryPortugalPortugal
Whyte2-4-6-0T2-4-6-0T
Number in Class117
Road NumbersE 200-210E 211-217
GaugeMetreMetre
Number Built117
BuilderHenschel & SohnHenschel & Sohn
Year19111923
Valve GearWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.46 / 1.36
Engine Wheelbase (ft / m)28.50 / 8.6927.13 / 8.27
Ratio of driving wheelbase to overall engine wheelbase 0.16
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)114,576 / 51,971
Engine Weight (lbs / kg)129,920 / 58,931132,277 / 60,000
Tender Loaded Weight (lbs / kg)123,750 / 56,132
Total Engine and Tender Weight (lbs / kg)253,670 / 115,063132,277 / 60,000
Tender Water Capacity (gals / ML)1320 / 51584 / 6
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.50 / 2 2.50 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 19
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 100043.30 / 1100
Boiler Pressure (psi / kPa)203 / 14198.70 / 13.70
High Pressure Cylinders (dia x stroke) (in / mm)13.78" x 21.65" / 350x55013.78" x 21.65" / 350x550
Low Pressure Cylinders (dia x stroke) (in / mm)19.69" x 21.65" / 500x55019.69" x 21.65" / 500x550
Tractive Effort (lbs / kg)24,170 / 10963.3421,527 / 9764.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.74
Heating Ability
Tubes (number - dia) (in / mm)224 - 1.77" / 46224 - 1.614" / 41
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.12 / 413.12 / 4
Firebox Area (sq ft / m2)151 / 14.0371.04 / 6.60
Grate Area (sq ft / m2)21.50 / 221.10 / 1.96
Evaporative Heating Surface (sq ft / m2)1475 / 137.081327 / 123.30
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1475 / 137.081327 / 123.30
Evaporative Heating Surface/Cylinder Volume394.69355.09
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation43654193
Same as above plus superheater percentage43654193
Same as above but substitute firebox area for grate area30,65314,116
Power L138963161
Power MT374.83

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