Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 20, p. 36. Works numbers were 14453-14454 in September 1895
Only a few Ten-wheelers of this size used the larger-diameter tubes shown in the specs. Not long after they arrived, the SA became the Acajutla & Sonsonate and renumbered 6-7. (The A & S was the first railroad in El Salvador and linked the two towns that were 12 miles apart. Sonsonate was located 53 miles (85 km) from San Salvador and Acajutla was its Pacific port.)
Within a year after that, the A & S was taken into the El Salvador state railway in 1897.
They remained in service at least until 1956 and both were reported to be in storage in 1997.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 5 |
| Locobase ID | 12168 |
| Railroad | Santa Ana |
| Country | El Salvador |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 5-6 / 6-7 |
| Gauge | 3' |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1895 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.42 / 2.26 |
| Engine Wheelbase (ft / m) | 16.75 / 5.11 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 44.64 / 13.61 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 70,000 / 31,752 |
| Engine Weight (lbs / kg) | 86,000 / 39,009 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 39 / 19.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 20" / 432x508 |
| Tractive Effort (lbs / kg) | 18,716 / 8489.44 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.74 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 133 - 2.25" / 57 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.33 / 4.06 |
| Firebox Area (sq ft / m2) | 105 / 9.76 |
| Grate Area (sq ft / m2) | 16 / 1.49 |
| Evaporative Heating Surface (sq ft / m2) | 1144 / 106.32 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1144 / 106.32 |
| Evaporative Heating Surface/Cylinder Volume | 217.73 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2560 |
| Same as above plus superheater percentage | 2560 |
| Same as above but substitute firebox area for grate area | 16,800 |
| Power L1 | 3558 |
| Power MT | 336.17 |