Data from Charles Alfred Opperman, Traite Complet des Chemins de Fer Economiques D' Interet Local (Paris: Imprimerie Pillet Fils Aine, 1873), pp.164-165. Builders numbers were 158-161 (1861), 162-165 (1862), and 242-243 (1864)
See Locobase 11157 for a description of Vaessen's radial truck, which allowed the locomotive to negotiate sharper curves and Locobase 11330 for the terrain over which this class of low-drivered freights ran. Among the first to operate Egide Walschaert's gear and fitted with Alfred Belpaire's new firebox design, this design represented some of the best of Belgian locomotive design.
They were bought from St Leonard by for the cost of and named Santo Domingo, Besaya, Ensenada, Velarde, Elero, Pisuerga, 10 de Marzo, and Cuba. The last two to arrive, in 1864, were Renedo and Isabel II.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 16 |
| Locobase ID | 11331 |
| Railroad | Alar del Rey a Santander (Isabelle II) |
| Country | Spain |
| Whyte | 4-6-0T |
| Number in Class | 10 |
| Road Numbers | 16-23, 35-36 |
| Gauge | Std |
| Number Built | 10 |
| Builder | SA Saint Leonard |
| Year | 1861 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.53 / 2.60 |
| Engine Wheelbase (ft / m) | 18.45 / 5.62 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
| Overall Wheelbase (engine & tender) (ft / m) | 18.45 / 5.62 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 59,525 / 27,000 |
| Engine Weight (lbs / kg) | 101,413 / 46,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 101,413 / 46,000 |
| Tender Water Capacity (gals / ML) | 1188 / 4.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 47.20 / 1200 |
| Boiler Pressure (psi / kPa) | 113.10 / 780 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.11" x 24.02" / 460x610 |
| Tractive Effort (lbs / kg) | 16,045 / 7277.90 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.71 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 200 - 1.969" / 50 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.52 / 4.12 |
| Firebox Area (sq ft / m2) | 105.45 / 9.80 |
| Grate Area (sq ft / m2) | 29.27 / 2.72 |
| Evaporative Heating Surface (sq ft / m2) | 1497 / 139.16 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1497 / 139.16 |
| Evaporative Heating Surface/Cylinder Volume | 209.04 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3310 |
| Same as above plus superheater percentage | 3310 |
| Same as above but substitute firebox area for grate area | 11,926 |
| Power L1 | 2515 |
| Power MT | 279.44 |