Madrid-Caceres-Portugal / Oeste 0-8-0 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class 040-2251 (Locobase 3462)

Data from [], the web site of the Spanish National Railway (19 Mar 2004).

Two additional locomotives added to the six that the Oeste had obtained 20 years earlier from the same builder. Slight adjustments to the boiler and firebox were the only real changes to a basic design.

RENFE gave them numbers 040-2251--040-2252.


Class 601/801/040-2311 (Locobase 3468)

Data from [], the web site of the Spanish National Railway. Works numbers were 3747-3752 in 1914.


Class 607/807/040-2321 (Locobase 3469)

Data from [], the web site of the Spanish National Railway. Works numbers were 4455-4462 in 1921.

The single difference between this set of superheated eight-coupleds and the earlier batch that came from the same builder in 1914 (Locobase 3468) was the provision of a larger tender.

Principal Dimensions by Steve Llanso of Sweat House Media

Class040-2251601/801/040-2311607/807/040-2321
Locobase ID3462 3468 3469
RailroadOesteMadrid-Caceres-Portugal (Oeste)Madrid-Caceres-Portugal (Oeste)
CountrySpainSpainSpain
Whyte0-8-00-8-00-8-0
Number in Class268
Road Numbers827-828601-606/801-806/040-2311 a 040-2316607-614/807-814/040-2321 a 040-2328
Gauge5'6"5'6"5'6"
Number Built268
BuilderSharp, StewartHartmannHartmann
Year190319141921
Valve GearStephensonWalschaertWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)15.41 / 4.7014.99 / 4.5714.99 / 4.57
Engine Wheelbase (ft / m)15.41 / 4.7014.99 / 4.5714.99 / 4.57
Ratio of driving wheelbase to overall engine wheelbase111
Overall Wheelbase (engine & tender) (ft / m)39.27 / 11.9740.69 / 12.4040.69 / 12.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)27,558 / 12,500 / 13,09028,858 / 13,090
Weight on Drivers (lbs / kg)110,231 / 50,000115,346 / 52,320115,346 / 52,320
Engine Weight (lbs / kg)110,231 / 50,000115,346 / 52,320115,346 / 52,320
Tender Loaded Weight (lbs / kg)62,832 / 28,50083,776 / 38,00091,051 / 41,300
Total Engine and Tender Weight (lbs / kg)173,063 / 78,500199,122 / 90,320206,397 / 93,620
Tender Water Capacity (gals / ML)2376 / 93168 / 123696 / 14
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 8.30 / 8 6.60 / 6 6.60 / 6
Minimum weight of rail (calculated) (lb/yd / kg/m)46 / 2348 / 2448 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51.50 / 130851.20 / 130051.20 / 1300
Boiler Pressure (psi / kPa)145 / 10171.10 / 11.80171.10 / 11.80
High Pressure Cylinders (dia x stroke) (in / mm)20" x 25.98" / 508x66019.69" x 24.02" / 500x61019.69" x 24.02" / 500x610
Tractive Effort (lbs / kg)24,870 / 11280.8626,452 / 11998.4426,452 / 11998.44
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.43 4.36 4.36
Heating Ability
Tubes (number - dia) (in / mm)200 - 2.008" / 51135 - 1.969" / 50135 - 1.969" / 50
Flues (number - dia) (in / mm)24 - 5" / 12724 - 5" / 127
Flue/Tube length (ft / m)12.93 / 3.9413.12 / 413.12 / 4
Firebox Area (sq ft / m2)124.86 / 11.60114.10 / 10.60114.10 / 10.60
Grate Area (sq ft / m2)25.83 / 2.4033.37 / 3.1033.37 / 3.10
Evaporative Heating Surface (sq ft / m2)1478 / 137.271322 / 122.861322 / 122.86
Superheating Surface (sq ft / m2)387 / 35.97387 / 35.97
Combined Heating Surface (sq ft / m2)1478 / 137.271709 / 158.831709 / 158.83
Evaporative Heating Surface/Cylinder Volume156.46156.17156.17
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation374557105710
Same as above plus superheater percentage374570237023
Same as above but substitute firebox area for grate area18,10524,01324,013
Power L1277092719271
Power MT221.60708.79708.79

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