Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 62. Works number was 26843 in November 1905 and 27156 in December.
These 3/4-scale Moguls were sold by the V a M to the Paulista, where they took road numbers 1-2. Given that two engines were bought in the next year (Locobase 12863) with exactly the same numbers and name and that they were quite a bit smaller, Locobase supposes this pair quickly proved too big for the V a M.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 28, p. 62. Works number was 28473-28474 in June 1906 and 29773-29774 in December.
Locobase's suspicion in entry 12862 that the 1905 pair of Moguls were too big and thus sold off very quickly is reinforced by an unequivocal requirement in the specs for their replacements. Under the weights, which came to about half of the earlier locomotives, a Baldwin representative wrote: "Engines to weight EXACTLY [underline in original] as specified."
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | Francisco Sa | Francisco Sa |
Locobase ID | 12862 | 12863 |
Railroad | Vittoria a Minas (CVM) | Vittoria a Minas (CVM) |
Country | Brazil | Brazil |
Whyte | 2-6-0 | 2-6-0 |
Number in Class | 2 | 4 |
Road Numbers | 4-5 | 4-5, 8-9 |
Gauge | Metre | Metre |
Number Built | 2 | 4 |
Builder | Burnham, Williams & Co | Burnham, Williams & Co |
Year | 1905 | 1906 |
Valve Gear | Stephenson | Stephenson |
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | 12 / 3.66 | 9.67 / 2.95 |
Engine Wheelbase (ft / m) | 19.67 / 6 | 15.67 / 4.78 |
Ratio of driving wheelbase to overall engine wheelbase | 0.61 | 0.62 |
Overall Wheelbase (engine & tender) (ft / m) | 38.67 / 11.79 | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
Weight on Drivers (lbs / kg) | 80,000 / 36,287 | 48,000 / 21,772 |
Engine Weight (lbs / kg) | 92,000 / 41,731 | 56,000 / 25,401 |
Tender Loaded Weight (lbs / kg) | 54,000 / 24,494 | 44,000 / 19,958 |
Total Engine and Tender Weight (lbs / kg) | 146,000 / 66,225 | 100,000 / 45,359 |
Tender Water Capacity (gals / ML) | 3000 / 11.36 | 2200 / 8.33 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 44 / 22 | 27 / 13.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 42 / 940 | 41 / 1041 |
Boiler Pressure (psi / kPa) | 160 / 1100 | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 20" / 457x508 | 14" x 18" / 356x457 |
Tractive Effort (lbs / kg) | 20,983 / 9517.74 | 11,703 / 5308.40 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.81 | 4.10 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | 200 - 2" / 51 | 153 - 1.75" / 44 |
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | 10.75 / 3.28 | 8.62 / 2.63 |
Firebox Area (sq ft / m2) | 119.10 / 11.07 | 69 / 6.41 |
Grate Area (sq ft / m2) | 19 / 1.77 | 14 / 1.30 |
Evaporative Heating Surface (sq ft / m2) | 1236 / 114.87 | 668 / 62.08 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 1236 / 114.87 | 668 / 62.08 |
Evaporative Heating Surface/Cylinder Volume | 209.83 | 208.29 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 3040 | 2240 |
Same as above plus superheater percentage | 3040 | 2240 |
Same as above but substitute firebox area for grate area | 19,056 | 11,040 |
Power L1 | 3482 | 3453 |
Power MT | 287.87 | 475.78 |