Betanzos _ Ferrol 4-8-4 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class 1/89/961/242-0201 (Locobase 3398)

Data from [link], the web site of the Spanish National Railway; see also , p. 146. See also Juan Peris Torner, "Betanzos á Ferrol, Publicada el: 13 / feb / 2012" at [link], last accessed 12 April 2015. Works numbers were 86-89 in 1917.

Eight-axle tank engines saw service in several countries including on this Galician railway in extreme northwestern Spain. It linked Betanzos with the Spanish naval base at El Ferrol on the Bay of Biscay.

Torner says that this quartet soon moved from to the Ferrocarril de Medina del Campo á Zamora y de Orense á Vigo (MZOV) and renumbered 86-89. When the Oeste formed and reclassified all of its motive power, these tanks were renumbered 961-964. Finally, when the RENFE was created in 1941, these were placed in class 242-0201.

NB: RENFE's 1947 diagram shows the exterior diameter of the 143 small tubes and 22 large tubes, but gives the following heating surface areas based on the tubes' interior diameters: tubes and flues , 143.20 sq m (1,636 sq ft) and, including firebox area, 156.70 sq m (1,687 sq ft).

Principal Dimensions by Steve Llanso of Middle Run Media
Class1/89/961/242-0201
Locobase ID3398
RailroadBetanzos _ Ferrol
CountrySpain
Whyte4-8-4T
Number in Class4
Road Numbers1-4/89-92/961-964/242-0201 a 242-0204
Gauge5'6"
Number Built4
BuilderMTM
Year1917
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.24 / 4.95
Engine Wheelbase (ft / m)39.80 / 12.13
Ratio of driving wheelbase to overall engine wheelbase 0.41
Overall Wheelbase (engine & tender) (ft / m)39.80 / 12.13
Axle Loading (Maximum Weight per Axle) (lbs / kg)30,865 / 14,000
Weight on Drivers (lbs / kg)123,459 / 56,000
Engine Weight (lbs / kg)207,234 / 94,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2600 / 9.85
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.90 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)51 / 25.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)59.10 / 1501
Boiler Pressure (psi / kPa)174 / 1200
High Pressure Cylinders (dia x stroke) (in / mm)21.65" x 25.59" / 550x650
Tractive Effort (lbs / kg)30,017 / 13615.50
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11
Heating Ability
Tubes (number - dia) (in / mm)252 - 1.969" / 50
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)15.42 / 4.70
Firebox Area (sq ft / m2)139.93 / 13
Grate Area (sq ft / m2)33.37 / 3.10
Evaporative Heating Surface (sq ft / m2)2148 / 199.54
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2148 / 199.54
Evaporative Heating Surface/Cylinder Volume197.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5806
Same as above plus superheater percentage5806
Same as above but substitute firebox area for grate area24,348
Power L14476
Power MT319.71

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