Vittoria a Minas 2-8-0 Locomotives in Brazil
Class Details by Steve Llanso of Sweat House Media
Class 7 (Locobase 13458)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 40, p. 133. See also Numistoria's "Victoria-Minas Railway Company (1902)" bond description at [
], last accessed 2 March 2023.Works numbers were 38309-38310 in September 1912.
The VaM's route included the cities Belo Horizonte, Minas Gerais and Vitória, Espfrito Santo. It comprised the Petanha in Araxa and Victoria in Petanha in a merger. .Formed to built a line from Vittoria in Espiritu Santo to Diamantina in Minas Gerais, the project benefited from the Braxilian government's promise of a 6% return on capital over 30 year period. But after 1914, the government never paid the guarantee.
Two other lines, one going from Santa-Anna dos Ferros to Itabira do Matto-Dentro and the other from Curralinha to Diamantina.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 7 |
| Locobase ID | 13458 |
| Railroad | Vittoria a Minas (CVM) |
| Country | Brazil |
| Whyte | 2-8-0 |
| Number in Class | 2 |
| Road Numbers | 7, 5 / 271, 270 / 1271, 1270 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 12.25 / 3.73 |
| Engine Wheelbase (ft / m) | 18.92 / 5.77 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | 45.25 / 13.79 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 73,000 / 33,112 |
| Engine Weight (lbs / kg) | 82,000 / 37,195 |
| Tender Loaded Weight (lbs / kg) | 44,000 / 19,958 |
| Total Engine and Tender Weight (lbs / kg) | 126,000 / 57,153 |
| Tender Water Capacity (gals / ML) | 2200 / 8.33 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
| 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) | 16" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 16,579 / 7520.12 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.40 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 154 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.58 / 3.53 |
| Firebox Area (sq ft / m2) | 89 / 8.27 |
| Grate Area (sq ft / m2) | 15.50 / 1.44 |
| Evaporative Heating Surface (sq ft / m2) | 1016 / 94.39 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1016 / 94.39 |
| Evaporative Heating Surface/Cylinder Volume | 218.30 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2480 |
| Same as above plus superheater percentage | 2480 |
| Same as above but substitute firebox area for grate area | 14,240 |
| Power L1 | 3516 |
| Power MT | 424.74 |