Data from Baldwin Locomotive Works, Record of Recent Construction ((1903), No. 31, p. 20-21; and DeGolyer, Volume 24, p. 4. Works numbers were 19356-19359 in August 1901. See Ferropedia's [] Minera y Metal+rgica de Pe'arroya. for more expansive description of this railway.
The SMMP was chartered in 1881 to serve the lead deposits in Estremadura. In 1893, it took over the Societe Houilliere et Metallurgique de Belmez and in the process greatly added to its resources. It would eventually maintain a monopoly over lead resources.
The line was located north of Cordoma and eventually ran 148 km (92 miles) northeast between Pe'arroya and Puertollano and 68 km (42.2 miles) west to Fuente de Arco. The western section opened first on 26 June 1895.
Teetering on the short wheelbase, this quartet of switchers served the yards of the SMP. Their names derived from a variety of sources, it would seem: Terrible, Santa Elisa, BTlmez, La Vega.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | Terrible |
Locobase ID | 10774 |
Railroad | Societe Miniere et Metallurgique de Penarroya |
Country | Spain |
Whyte | 0-6-0T |
Number in Class | 4 |
Road Numbers | 3-6 |
Gauge | 5'6" |
Number Built | 4 |
Builder | Burnham, Williams & Co |
Year | 1900 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 9 / 2.74 |
Engine Wheelbase (ft / m) | 9 / 2.74 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 9 / 2.74 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 88,800 / 40,279 |
Engine Weight (lbs / kg) | 88,800 / 40,279 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1000 / 3.79 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 43 / 1092 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 22" / 406x559 |
Tractive Effort (lbs / kg) | 17,813 / 8079.85 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.99 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 139 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 12.67 / 3.86 |
Firebox Area (sq ft / m2) | 83 / 7.71 |
Grate Area (sq ft / m2) | 14.90 / 1.38 |
Evaporative Heating Surface (sq ft / m2) | 996 / 92.53 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 996 / 92.53 |
Evaporative Heating Surface/Cylinder Volume | 194.55 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2384 |
Same as above plus superheater percentage | 2384 |
Same as above but substitute firebox area for grate area | 13,280 |
Power L1 | 3160 |
Power MT | 235.36 |