Data from http://www . eltren.com/aficionados/todo_sobre/ficha_tech and [] (28 April 2003). See also Manuel Jesus Martinez Selva, "La Traccion vapor en el Ferrocarril Bobadilla-Algeciras", Euphoros #2 (1998), pp. 62.
The first 15 in the class had three-axle tenders that held 3,150 gal of water and 4.4 tons of coal. Three builders contributed units of the class: Franco-Belge (the first 15, works numbers 2148-2162), Borsig (works numbers were 11183-11197), Schwartzkopff (works numbers were 7645-7654), and Hanomag (works numbers were 9779-9788).
All had Belpaire fireboxes. Martinez Selva says the first 15 were assigned to the Granada sheds while the other 35 were based at Cordoba. As Locobase translates him, Maritinez Selva adds that the class had "an antiquated design and a profile (aspecto) resembling that of a 19th Century locomotive." They were rated at 70 km/h (45 mph) on the level.
Data from [], the web site of the Spanish National Railway. See also Manuel Jesus Martinez Selva, "La Traccion vapor en el Ferrocarril Bobadilla-Algeciras", Euphoros #2 (1998), pp. 62.
Pere Comas, whose Paleontologia Vaporosa posts on the family tree of Spanish 4-8-0s are referenced in Locobase 3382, says that in addition to the increased tonnage of each freight experienced by theAndaluces, which led to the railway's adoption of a 4-8-0 Mastodon arrangement, it also suffered from very tight curve alignments and steep grades between Bobadilla and Algeciras. Martinez Selva spells out the challenge of climbing to Setenil (one of the highest points on the Bobadilla-Algeciras section), saying that starting at Jimena (kilometre post 42, elevation 48 metres above sea level), the rise over the next 64 km (39.7 miles) totalled 740 metres (2,428 feet). From Bobadilla to Setenil, 53 km (32.9 miles) of line rose 402 metres (1,319 feet). So the average gradient over this long stretch was 1%.
Their solution was based on the MZA's "Mastodontus Ibericus" and which Comas identifies as a subspecies "Mastodontus Ibericus Andalucensis". To cope with the steep grades, the designers adopted a relatively small driver diameter. Although this limited maximum speed to 50-60 km/h, Martinez Selva notes, that limitation represented a small sacrifice on a line that didn't call for high speeds.
The first 25 were delivered from MTM in 1926-1927. In 1942-1943, Devis S.A. supplied 15 more to Andaluces' successor RENFE.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | 240-2001 | 240-2431 |
Locobase ID | 3379 | 3387 |
Railroad | Andaluces | Andaluces |
Country | Spain | Spain |
Whyte | 4-8-0 | 4-8-0 |
Number in Class | 50 | 35 |
Road Numbers | 401-450 / 240.2001-2050 | 4201-4235/240.2431-2465 |
Gauge | 5'6" | 5'6" |
Number Built | 50 | 35 |
Builder | several | several |
Year | 1921 | 1926 |
Valve Gear | Walschaert | Walschaert |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 19.36 / 5.90 | 15.58 / 4.75 |
Engine Wheelbase (ft / m) | 30.94 / 9.43 | 27.97 / 8.53 |
Ratio of driving wheelbase to overall engine wheelbase | 0.63 | 0.56 |
Overall Wheelbase (engine & tender) (ft / m) | 54.02 / 16.47 | 58.19 / 17.73 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,351 / 12,860 | 38,801 / 17,600 |
Weight on Drivers (lbs / kg) | 109,702 / 49,760 | 154,092 / 69,895 |
Engine Weight (lbs / kg) | 147,202 / 66,770 | 196,828 / 89,280 |
Tender Loaded Weight (lbs / kg) | 76,721 / 34,800 | 110,231 / 50,000 |
Total Engine and Tender Weight (lbs / kg) | 223,923 / 101,570 | 307,059 / 139,280 |
Tender Water Capacity (gals / ML) | 3900 / 14.77 | 5201 / 19.70 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.90 / 4 | 6.60 / 6 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 | 64 / 32 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 63.80 / 1621 | 55.50 / 1410 |
Boiler Pressure (psi / kPa) | 188.50 / 1300 | 188.50 / 1300 |
High Pressure Cylinders (dia x stroke) (in / mm) | 22.05" x 26" / 560x660 | 24.41" x 25.98" / 620x660 |
Tractive Effort (lbs / kg) | 31,747 / 14400.21 | 44,690 / 20271.07 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.46 | 3.45 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 114 - 1.97" / 50 | 211 - 1.969" / 50 |
Flues (number - dia) (in / mm) | 24 - 5.25" / 133 | 26 - 5.236" / 133 |
Flue/Tube length (ft / m) | 15.58 / 4.75 | 16.40 / 5 |
Firebox Area (sq ft / m2) | 151.72 / 14.10 | 176.53 / 16.40 |
Grate Area (sq ft / m2) | 37.66 / 3.50 | 49.08 / 4.56 |
Evaporative Heating Surface (sq ft / m2) | 1665 / 154.74 | 2355 / 218.77 |
Superheating Surface (sq ft / m2) | 484 / 44.98 | 629 / 58.46 |
Combined Heating Surface (sq ft / m2) | 2149 / 199.72 | 2984 / 277.23 |
Evaporative Heating Surface/Cylinder Volume | 144.89 | 167.36 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 7099 | 9252 |
Same as above plus superheater percentage | 8732 | 11,194 |
Same as above but substitute firebox area for grate area | 35,177 | 40,264 |
Power L1 | 11,825 | 11,026 |
Power MT | 950.56 | 631.00 |