Data from "The First Locomotive, Buenos Ayres [sic] Western Ry.", The Locomotive Magazine, Vol XV (15 June 1909), p. 114. Most sources credit this locomotive to Hunslet Engine Company.
First used as a contractor' engine during the Crimean War, this little tank had been destined for a broad-gauge railway in India. Once the war ended in 1857, however, it was sold to the BAW and thus, according to the LM report, established that many British-owned railways in Argentina would run on the broad gauge.
Its obvious fitness for low-speed, short-haul freight duties didn't prevent its heading the parade when the BAW was opened on 29 August 1857, pulling five passenger coaches.
The locomotive ran for another 33 years, chiefly between Liniers and the plaza Misere . It was retired in 1890. In 1957 it raised steam for a trip to Museo del Transporte de Luján.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | La Portena |
Locobase ID | 10715 |
Railroad | Buenos Aires Western |
Country | Argentina |
Whyte | 0-4-0ST |
Number in Class | 1 |
Road Numbers | 1 |
Gauge | 5'6" |
Number Built | 1 |
Builder | Manning Wardle |
Year | 1854 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | |
Engine Wheelbase (ft / m) | |
Ratio of driving wheelbase to overall engine wheelbase | |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 33,600 / 15,241 |
Engine Weight (lbs / kg) | 33,600 / 15,241 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 28 / 14 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 48 / 1219 |
Boiler Pressure (psi / kPa) | 150 / 1030 |
High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 15" / 254x381 (3) |
Tractive Effort (lbs / kg) | 5977 / 2711.12 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.62 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 52 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 8.79 / 2.68 |
Firebox Area (sq ft / m2) | 32.75 / 3.04 |
Grate Area (sq ft / m2) | |
Evaporative Heating Surface (sq ft / m2) | 319 / 29.65 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 319 / 29.65 |
Evaporative Heating Surface/Cylinder Volume | 155.97 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | |
Same as above plus superheater percentage | |
Same as above but substitute firebox area for grate area | 4913 |
Power L1 | 2832 |
Power MT | 371.64 |