CEMR 0-6-0 Locomotives in Spain


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 4942)

[link]. See also Juan Peris Torner, "Ferrocarril de la Compa'fa Espa'ola de Minas del Rif v Protectorado de Marrueco", his spanishrailways.com blog entry of 27 March 2012, last accessed 3 August 2015 at [link] . Works numbers were 3625 in 1909, 4830 in 1911, 10523 in 1923.

The CEMR website describes these workhorses for the Compania Espanola de Minerales del Rif (CEMR). The CEMR, the history page tells us, was founded in 1908 as one of the narrow-gauge railways built across the Strait in North Africa (Spanish Morocco) to exploit iron-ore deposits. The port of Melilla was one terminus while the railway wound back into the hinterlands.

The O&K engines were bigger and more powerful than the earlier Avonside engine and served the CEMR for years. Later (around 1936, guesses the arrakis page), they bore the numbers 241-243 and worked at leveling the San Lorenzo mountain.

(The webpage writer also notes that the technical data actually comes from contemporaneous engines supplied to an Argentine railway (O&K number 5433). He states that the only difference is the gauge, the Argentine engine operating on standard gauge.

He is in error, according to a Uruguayan website, which has full details -- recorded in Locobase 4777 -- on the #1, which is the O&K engine to which he refers. )

Principal Dimensions by Steve Llanso of Middle Run Media
Classunknown
Locobase ID4942
RailroadCEMR
CountrySpain
Whyte0-6-0T
Number in Class3
Road Numbers(241-243)
GaugeMetre
Number Built3
BuilderOrenstein & Koppel
Year1909
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.19 / 2.80
Engine Wheelbase (ft / m) 9.19 / 2.80
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m) 9.19 / 2.80
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)99,207 / 45,000
Engine Weight (lbs / kg)99,207 / 45,000
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)793 / 3
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)39.40 / 1000
Boiler Pressure (psi / kPa)170.70 / 1180
High Pressure Cylinders (dia x stroke) (in / mm)16.54" x 24.41" / 420x620
Tractive Effort (lbs / kg)24,592 / 11154.76
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Tubes (number - dia) (in / mm)172 - 1.87" / 47
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.17 / 3.10
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)16.14 / 1.50
Evaporative Heating Surface (sq ft / m2)872 / 81.04
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)872 / 81.04
Evaporative Heating Surface/Cylinder Volume143.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2755
Same as above plus superheater percentage2755
Same as above but substitute firebox area for grate area
Power L1
Power MT

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