Madrid-Caceres-Portugal / Oeste 0-8-0 Locomotives in Spain
Class Details by Steve Llanso of Sweat House Media
Class 040-2251 (Locobase 3462)
Data from [
], the web site of the Spanish National Railway (19 Mar 2004).
Two additional locomotives added to the six that the Oeste had obtained 20 years earlier from the same builder. Slight adjustments to the boiler and firebox were the only real changes to a basic design.
RENFE gave them numbers 040-2251--040-2252.
Class 601/801/040-2311 (Locobase 3468)
Data from [], the web site of the Spanish National Railway. Works numbers were 3747-3752 in 1914.
Class 607/807/040-2321 (Locobase 3469)
Data from [], the web site of the Spanish National Railway. Works numbers were 4455-4462 in 1921.
The single difference between this set of superheated eight-coupleds and the earlier batch that came from the same builder in 1914 (Locobase 3468) was the provision of a larger tender.
| Principal Dimensions by Steve Llanso of Middle Run Media | |||
|---|---|---|---|
| Class | 040-2251 | 601/801/040-2311 | 607/807/040-2321 |
| Locobase ID | 3462 | 3468 | 3469 |
| Railroad | Oeste | Madrid-Caceres-Portugal (Oeste) | Madrid-Caceres-Portugal (Oeste) |
| Country | Spain | Spain | Spain |
| Whyte | 0-8-0 | 0-8-0 | 0-8-0 |
| Number in Class | 2 | 6 | 8 |
| Road Numbers | 827-828 | 601-606/801-806/040-2311 a 040-2316 | 607-614/807-814/040-2321 a 040-2328 |
| Gauge | 5'6" | 5'6" | 5'6" |
| Number Built | 2 | 6 | 8 |
| Builder | Sharp, Stewart | Hartmann | Hartmann |
| Year | 1903 | 1914 | 1921 |
| Valve Gear | Stephenson | Walschaert | Walschaert |
| Locomotive Length and Weight | |||
| Driver Wheelbase (ft / m) | 15.41 / 4.70 | 14.99 / 4.57 | 14.99 / 4.57 |
| Engine Wheelbase (ft / m) | 15.41 / 4.70 | 14.99 / 4.57 | 14.99 / 4.57 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 | 1 | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 39.27 / 11.97 | 40.69 / 12.40 | 40.69 / 12.40 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,558 / 12,500 | / 13,090 | 28,858 / 13,090 |
| Weight on Drivers (lbs / kg) | 110,231 / 50,000 | 115,346 / 52,320 | 115,346 / 52,320 |
| Engine Weight (lbs / kg) | 110,231 / 50,000 | 115,346 / 52,320 | 115,346 / 52,320 |
| Tender Loaded Weight (lbs / kg) | 62,832 / 28,500 | 83,776 / 38,000 | 91,051 / 41,300 |
| Total Engine and Tender Weight (lbs / kg) | 173,063 / 78,500 | 199,122 / 90,320 | 206,397 / 93,620 |
| Tender Water Capacity (gals / ML) | 2376 / 9 | 3168 / 12 | 3696 / 14 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.30 / 8 | 6.60 / 6 | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 | 48 / 24 | 48 / 24 |
| Geometry Relating to Tractive Effort | |||
| Driver Diameter (in / mm) | 51.50 / 1308 | 51.20 / 1300 | 51.20 / 1300 |
| Boiler Pressure (psi / kPa) | 145 / 1000 | 171.10 / 1180 | 171.10 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 25.98" / 508x660 | 19.69" x 24.02" / 500x610 | 19.69" x 24.02" / 500x610 |
| Tractive Effort (lbs / kg) | 24,870 / 11280.86 | 26,452 / 11998.44 | 26,452 / 11998.44 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.43 | 4.36 | 4.36 |
| Heating Ability | |||
| Tubes (number - dia) (in / mm) | 200 - 2.008" / 51 | 135 - 1.969" / 50 | 135 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | 24 - 5" / 127 | 24 - 5" / 127 | |
| Flue/Tube length (ft / m) | 12.93 / 3.94 | 13.12 / 4 | 13.12 / 4 |
| Firebox Area (sq ft / m2) | 124.86 / 11.60 | 114.10 / 10.60 | 114.10 / 10.60 |
| Grate Area (sq ft / m2) | 25.83 / 2.40 | 33.37 / 3.10 | 33.37 / 3.10 |
| Evaporative Heating Surface (sq ft / m2) | 1478 / 137.27 | 1322 / 122.86 | 1322 / 122.86 |
| Superheating Surface (sq ft / m2) | 387 / 35.97 | 387 / 35.97 | |
| Combined Heating Surface (sq ft / m2) | 1478 / 137.27 | 1709 / 158.83 | 1709 / 158.83 |
| Evaporative Heating Surface/Cylinder Volume | 156.46 | 156.17 | 156.17 |
| Computations Relating to Power Output (More Information) | |||
| Robert LeMassena's Power Computation | 3745 | 5710 | 5710 |
| Same as above plus superheater percentage | 3745 | 7023 | 7023 |
| Same as above but substitute firebox area for grate area | 18,105 | 24,013 | 24,013 |
| Power L1 | 2770 | 9271 | 9271 |
| Power MT | 221.60 | 708.79 | 708.79 |