Oeste 4-8-0 Locomotives in Spain
Class Details by Steve Llanso of Sweat House Media
Class 240-2051 (Locobase 3380)
Linke-Hoffman delivered the first batch of this class in 1922; Euskalduna in Bilbao produced later examples in 1928 and 1931.
Data from [
] and [] (28 April 2003)
Class 240-2201 (Locobase 3383)
Data from [] . Produced by Babcock & Wilcox, Euskalduna, Devis, and MTM. The first part were delivered in 1932; later examples were produced in 1940. These were identical to the MZA's 1400 class (see Locobase 3384-85).
In Lineas Del Tren (#290, 5 May 2003) [Por que llegaron a Espana las 1-4-1 Mikados francesas? reproduced on [], accessed 7 Dec 2005], Angel Maestro credits this class with handling 325 tonnes of train over the El Escorial-La Canada line, which featured a ruling grade of 2.1%. 2.1%.
Pere Comas, whose Paleontologia Vaporosa posts on the family tree of Spanish 4-8-0s are referenced in Locobase 3382, notes that these are derived from the original "Mastodontus Ibericus" and as such qualify as a subspecies -- "Mastodontus Ibericus Bellotensis".
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 240-2051 | 240-2201 |
| Locobase ID | 3380 | 3383 |
| Railroad | Oeste | Oeste |
| Country | Spain | Spain |
| Whyte | 4-8-0 | 4-8-0 |
| Number in Class | 12 | 38 |
| Road Numbers | 831-842 / 240.2051-2062 | 1001-1038 /240.2201-2230 |
| Gauge | 5'6" | 5'6" |
| Number Built | 12 | 38 |
| Builder | several | several |
| Year | 1922 | 1932 |
| Valve Gear | Walschaert | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 16.73 / 5.10 | 18.70 / 5.70 |
| Engine Wheelbase (ft / m) | 27.40 / 8.35 | 31.33 / 9.55 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.61 | 0.60 |
| Overall Wheelbase (engine & tender) (ft / m) | 56.79 / 17.31 | 58.38 / 17.80 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,666 / 13,910 | |
| Weight on Drivers (lbs / kg) | 117,859 / 53,460 | 149,694 / 67,900 |
| Engine Weight (lbs / kg) | 153,662 / 69,700 | 202,605 / 91,900 |
| Tender Loaded Weight (lbs / kg) | 96,562 / 43,800 | 124,781 / 56,600 |
| Total Engine and Tender Weight (lbs / kg) | 250,224 / 113,500 | 327,386 / 148,500 |
| Tender Water Capacity (gals / ML) | 3640 / 13.79 | 6600 / 25 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 49 / 24.50 | 62 / 31 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 61.50 / 1560 | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 170.70 / 1180 | 198.70 / 1370 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 22.05" x 26" / 560x660 | 24.41" x 25.98" / 620x660 |
| Tractive Effort (lbs / kg) | 29,824 / 13527.95 | 41,500 / 18824.11 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.95 | 3.61 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 133 - 1.97" / 50 | 214 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | 22 - 5" / 127 | 26 - 5.236" / 133 |
| Flue/Tube length (ft / m) | 16.40 / 5 | 16.40 / 5 |
| Firebox Area (sq ft / m2) | 161.40 / 15 | 176.53 / 16.40 |
| Grate Area (sq ft / m2) | 40.89 / 3.80 | 49.08 / 4.56 |
| Evaporative Heating Surface (sq ft / m2) | 1612 / 149.81 | 2355 / 218.75 |
| Superheating Surface (sq ft / m2) | 473 / 43.96 | 630 / 58.50 |
| Combined Heating Surface (sq ft / m2) | 2085 / 193.77 | 2985 / 277.25 |
| Evaporative Heating Surface/Cylinder Volume | 140.28 | 167.36 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 6980 | 9752 |
| Same as above plus superheater percentage | 8585 | 11,800 |
| Same as above but substitute firebox area for grate area | 33,888 | 42,443 |
| Power L1 | 10,165 | 13,207 |
| Power MT | 760.57 | 778.02 |