Central de Aragon 0-6-0 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class 1/030-2471 (Locobase 3448)

Data from [link], the web site of the Spanish National Railway. Justo Arenillas in "Las locomotoras belgas en el Madrid-Caceres-Portugal", Lineas Del Tren (as reproduced on [link], viewed 28 April 2003)

Arenillas noted the very tall drivers for an 0-6-0, which were designed to serve two almost contradictory requirements. The tall drivers allowed a higher speed on the flat, while the all-adhesion arrangement gave better traction on the steep grades that were part of the CA's profile. Indeed, the latter seems to have influenced a change in layout from the originally planned 4-4-0.

Also fitted with the usual Belpaire firebox that included a relatively large grate for an all-adhesion six-coupled locomotive.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1/030-2471
Locobase ID3448
RailroadCentral de Aragon
CountrySpain
Whyte0-6-0
Number in Class8
Road Numbers1-8/030-2471 a 030-2478
Gauge5'6"
Number Built8
BuilderCouillet
Year1902
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)13.12 / 4
Engine Wheelbase (ft / m)13.12 / 4
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)35.08 / 10.69
Axle Loading (Maximum Weight per Axle) (lbs / kg)29,762 / 13,500
Weight on Drivers (lbs / kg)89,287 / 40,500
Engine Weight (lbs / kg)89,287 / 40,500
Tender Loaded Weight (lbs / kg)55,116 / 25,000
Total Engine and Tender Weight (lbs / kg)144,403 / 65,500
Tender Water Capacity (gals / ML)3168 / 12
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.30 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66.90 / 1700
Boiler Pressure (psi / kPa)171.10 / 1180
High Pressure Cylinders (dia x stroke) (in / mm)18.9" x 23.62" / 480x600
Tractive Effort (lbs / kg)18,342 / 8319.80
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.87
Heating Ability
Tubes (number - dia) (in / mm)226 - 1.772" / 45
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.38 / 3.47
Firebox Area (sq ft / m2)129.17 / 12
Grate Area (sq ft / m2)32.29 / 3
Evaporative Heating Surface (sq ft / m2)1313 / 122
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1313 / 122
Evaporative Heating Surface/Cylinder Volume171.19
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5525
Same as above plus superheater percentage5525
Same as above but substitute firebox area for grate area22,101
Power L14872
Power MT360.89

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