Data from [], the web site of the Spanish National Railway. See also the blog "Re: Ayuda con la 031-0221" of 8 September 2010 at [], and "Serie 451 (RENFE 031-0221)" from the Railtren site at [], last accessed 18 November 2013.
One, #51, was converted to a tank engine by the shops at Vigo in 1911. It passed through the Oeste as 451 and was placed in its own class by the RENFE in 1941.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 031-0221 |
| Locobase ID | 3425 |
| Railroad | Oeste |
| Country | Spain |
| Whyte | 0-6-2T |
| Number in Class | 1 |
| Road Numbers | 451 |
| Gauge | 5'6" |
| Number Built | |
| Builder | Schwartzkopff |
| Year | 1911 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | 18.81 / 5.73 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
| Overall Wheelbase (engine & tender) (ft / m) | 18.81 / 5.73 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 27,937 / 12,672 |
| Weight on Drivers (lbs / kg) | 83,811 / 38,016 |
| Engine Weight (lbs / kg) | 111,748 / 50,688 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 924 / 3.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.70 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 51 / 1295 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.03" x 24.02" / 458x610 |
| Tractive Effort (lbs / kg) | 18,870 / 8559.30 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.44 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 161 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 14.07 / 4.29 |
| Firebox Area (sq ft / m2) | 90.63 / 8.42 |
| Grate Area (sq ft / m2) | 17.87 / 1.66 |
| Evaporative Heating Surface (sq ft / m2) | 1257 / 116.79 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1257 / 116.79 |
| Evaporative Heating Surface/Cylinder Volume | 177.09 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2591 |
| Same as above plus superheater percentage | 2591 |
| Same as above but substitute firebox area for grate area | 13,141 |
| Power L1 | 2969 |
| Power MT | 234.30 |