Data from "ARB" of Chesham, England, Letter entitled "The Longitudinal Railway of Chile", Railway and Locomotive Engineering, Vol (April 1911), pp. 148-149.
ARB described the new Longitudinal Railway as running "practically the length of Chile ...from Arica in the north and Otorno in the south." Noting that the southern section had posed "considerable engineering difficulties", ARB said that at the time of the letter, work had begun on 719 km (447 mi) of Northern section. This mostly desert topography allowed a route that ran over the nitrate deposits at Taltal, Aguas Blancas, Antofagasta, and Tocopilla. There were no tunnels and only one bridge and the permanent way featured relatively heavy 80 lb/yard (40 kg/metre) rail.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 16065 |
| Railroad | Longitudinal |
| Country | Chile |
| Whyte | 0-6-4T |
| Number in Class | 2 |
| Road Numbers | |
| Gauge | 2'6" |
| Number Built | 2 |
| Builder | Hunslet Engine Co |
| Year | 1911 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7 / 2.13 |
| Engine Wheelbase (ft / m) | 17.75 / 5.41 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 17.75 / 5.41 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 60,480 / 27,433 |
| Engine Weight (lbs / kg) | 78,736 / 35,714 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 78,736 / 35,714 |
| Tender Water Capacity (gals / ML) | 1115 / 4.22 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 34 / 864 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 18" / 381x457 |
| Tractive Effort (lbs / kg) | 16,200 / 7348.21 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.73 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 117 - 1.875" / 48 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11 / 3.35 |
| Firebox Area (sq ft / m2) | 57 / 5.30 |
| Grate Area (sq ft / m2) | 12.50 / 1.16 |
| Evaporative Heating Surface (sq ft / m2) | 688 / 63.92 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 688 / 63.92 |
| Evaporative Heating Surface/Cylinder Volume | 186.88 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2000 |
| Same as above plus superheater percentage | 2000 |
| Same as above but substitute firebox area for grate area | 9120 |
| Power L1 | 2396 |
| Power MT | 262.02 |