Data from [], the web site of the Spanish National Railway. See also the Madrid Railroad Museum's (Museo de Ferrocarril de Madrid) website at [], last accessed 9 April 2015. Three (works numbers 17647-17649) arrived in 1907, three more in 1909.
Combining a high-pitched boiler with Belpaire firebox and outside valve gear, this were a sextet of low-drivered freighters built originally for this Portuguese railway. According to the MdFdM website, their design harked back to a set of older Ten-wheelers of Scotland's Highland Railway known as the Castles (Locobase 3021).
All versions of the RENFE diagram give tube counts, diameters, and lengths that together with the firebox heating surface don't come close to presenting the evaporative heating surface area shown in the diagrams.
Locobase calculations suggest an exact fit with the reported EHS is close to that of the previously mentioned Castles. Changing tube count to 260 (from 126) and length to 14.75 ft lines up almost exactly with the EHS.
They were later sold to the Medina del Campo a Zamora, Orense y Vigo (M.Z.O.V) in Spain and taken into RENFE in 1941.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 230-2059 |
| Locobase ID | 3355 |
| Railroad | Companhia dos Caminhos de Ferro de Beira Alta |
| Country | Portugal |
| Whyte | 4-6-0 |
| Number in Class | 6 |
| Road Numbers | 60-65/760-765/230-2059 a 230-2064 |
| Gauge | Via Larga |
| Number Built | 6 |
| Builder | North British |
| Year | 1907 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.54 / 3.52 |
| Engine Wheelbase (ft / m) | 21.96 / 6.69 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.53 |
| Overall Wheelbase (engine & tender) (ft / m) | 41.64 / 12.69 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 30,241 / 13,717 |
| Weight on Drivers (lbs / kg) | 90,050 / 40,846 |
| Engine Weight (lbs / kg) | 123,207 / 55,886 |
| Tender Loaded Weight (lbs / kg) | 75,149 / 34,087 |
| Total Engine and Tender Weight (lbs / kg) | 198,356 / 89,973 |
| Tender Water Capacity (gals / ML) | 3696 / 14 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6.60 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 50 / 25 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 61.50 / 1562 |
| Boiler Pressure (psi / kPa) | 173.30 / 1180 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19.02" x 25.98" / 483x660 |
| Tractive Effort (lbs / kg) | 22,511 / 10210.83 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.00 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 260 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 14.75 / 4.50 |
| Firebox Area (sq ft / m2) | 133.04 / 12.36 |
| Grate Area (sq ft / m2) | 27.23 / 2.53 |
| Evaporative Heating Surface (sq ft / m2) | 2114 / 196.40 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 2114 / 196.40 |
| Evaporative Heating Surface/Cylinder Volume | 247.44 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 4719 |
| Same as above plus superheater percentage | 4719 |
| Same as above but substitute firebox area for grate area | 23,056 |
| Power L1 | 5778 |
| Power MT | 424.37 |