Data from [], the web site of the Spanish National Railway (link no longer active.). 1947 diagram book available online at [
], last accessed 26 December 2022. See also Justo Arenillas in "La material ingles en las pequenas companias", Lineas Del Tren (as reproduced on [
], viewed 28 April 2003); and http://[
] (17 May 2003), website of the Asociacion de Amigos del Ferrocarril Cuenc Mineral de Rio Tinto. Works numbers were 1854-1859 in 1887.
We're told that the railway was authorized in 1881 to provide a north-south public-use line that would serve many of the mines in Huelva province of Southwestern Spain. (Huelva is an Atlantic port located about 25 miles from the Portuguese border; Zafra is about 75 miles northeast of Huelva.) When the ZH opened, the railway contracted with Dubs to supply three batches of locomotives, each in a different arrangement. These 2-4-0s were the passenger engines.
Mines such as El Carpio, San Telmo, Lomero, Cueva de la Mora, La Joya, San Miguel had narrow-gauge lines that connected with the ZH at Valdelamusa or at the "whistle-stop (apeadero) of Tamujoso. Originally authorized in 1881, financing fell through. British interests came up with the necessary funds in 1884 and Valdelamusa-Huelva opened in 1886 with the Valdelamusa-Zafra section following in 1889.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 1/120-2091 |
Locobase ID | 3335 |
Railroad | Zafra a Huelva |
Country | Spain |
Whyte | 2-4-0 |
Number in Class | 6 |
Road Numbers | 1-6/120-2091-2096 |
Gauge | 5'6" |
Number Built | 6 |
Builder | Dubs & Co |
Year | 1885 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 7.51 / 2.29 |
Engine Wheelbase (ft / m) | 13.52 / 4.12 |
Ratio of driving wheelbase to overall engine wheelbase | 0.56 |
Overall Wheelbase (engine & tender) (ft / m) | 31.17 / 9.50 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 25,728 / 11,670 |
Weight on Drivers (lbs / kg) | 51,456 / 23,340 |
Engine Weight (lbs / kg) | 76,081 / 34,510 |
Tender Loaded Weight (lbs / kg) | 46,958 / 21,300 |
Total Engine and Tender Weight (lbs / kg) | 123,039 / 55,810 |
Tender Water Capacity (gals / ML) | 1819 / 6.89 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 43 / 21.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 60 / 1524 |
Boiler Pressure (psi / kPa) | 149.40 / 1030 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15.98" x 24.02" / 406x610 |
Tractive Effort (lbs / kg) | 12,982 / 5888.54 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.96 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 157 - 1.969" / 50 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.79 / 3.29 |
Firebox Area (sq ft / m2) | 84.93 / 7.89 |
Grate Area (sq ft / m2) | 13.02 / 1.21 |
Evaporative Heating Surface (sq ft / m2) | 983 / 91.36 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 983 / 91.36 |
Evaporative Heating Surface/Cylinder Volume | 176.30 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1945 |
Same as above plus superheater percentage | 1945 |
Same as above but substitute firebox area for grate area | 12,689 |
Power L1 | 3772 |
Power MT | 323.22 |