Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 44, p. 33. Works number was 33420 in May 1909.
Locobase 13006 shows us a relatively large Mogul for the 60-cm gauge. When the Dourado converted to metre-gauge running, they ordered a very similar wood-burner that was now in the middle of the pack. It too was a wood-burner, but with a smaller firebox.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 44, p. p. 35. See also Data from builder's card reproduced at [], supplemented by DeGolyer, Volume 66, pp. 305+. Works numbers were 37717 in May 1912 and 52940 in January 1920.
Designed to the same specs as the Mogul given the number 7 in 1906 (Locobase 13006), the 9 was every bit as big for the gauge as its earlier stablemate. However, it put more weight on the drivers for a more reasonable factor of adhesion. Eight years Baldwin delivered a stablemate.
The pair was late rebuilt to operate on the metre gauge and renumbered at that time. Sometime after that, the 15 was sold to the Paulista according to Gene Connelly's production list
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 24, p. 2. Works number was 19064 in May 1901.
Baldwin used the dimensions of a small Mogul design that they had sold to US railroads in 1892 to fulfill this order in 1901. The one difference was a considerably higher boiler pressure. After some years in service, the engine was sold to the Usina Monte Alegre.
NB: Locobase estimates the evaporative and direct heating surface area by comparing the very similar Laurel River Mogul described in Locobase 12047. They had the same number of identical-diameter boiler tubes running the same length (less 1/2 inch), as well as grates and fireboxes that measured identically to the quarter-inch.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p. 161 and Vol 44, p. 41. Works number was 28997 in September 1906.
A large and relatively wood-burning Mogul for this very skinny gauge, the 7 was set a daunting task: to haul 90 tons up a 3% grade and curl around curves of only 50 metres (164 feet).
Principal Dimensions by Steve Llanso of Middle Run Media | ||||
---|---|---|---|---|
Class | 1 | 11 | 3 | 7 / 4 |
Locobase ID | 13011 | 13012 | 12501 | 13006 |
Railroad | Dourado | Dourado | Dourado | Dourado |
Country | Brazil | Brazil | Brazil | Brazil |
Whyte | 2-6-0 | 2-6-0 | 2-6-0 | 2-6-0 |
Number in Class | 1 | 2 | 1 | 1 |
Road Numbers | 1 | 9, 11 / 14-15 | 3 | 7 |
Gauge | 60 cm | 60 cm | 2' | 60 cm |
Number Built | 1 | 2 | 1 | 1 |
Builder | Baldwin | Baldwin | Burnham, Williams & Co | Burnham, Williams & Co |
Year | 1909 | 1912 | 1901 | 1906 |
Valve Gear | Stephenson | Walschaert | Stephenson | Stephenson |
Locomotive Length and Weight | ||||
Driver Wheelbase (ft / m) | 7 / 2.13 | 7 / 2.13 | 7 / 2.13 | 7 / 2.13 |
Engine Wheelbase (ft / m) | 12.92 / 3.94 | 12.92 / 3.94 | 12.83 / 3.91 | 12.92 / 3.94 |
Ratio of driving wheelbase to overall engine wheelbase | 0.54 | 0.54 | 0.55 | 0.54 |
Overall Wheelbase (engine & tender) (ft / m) | 35.96 / 10.96 | 35.96 / 10.96 | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||||
Weight on Drivers (lbs / kg) | 49,000 / 22,226 | 49,000 / 22,226 | 35,000 / 15,876 | 41,000 / 18,597 |
Engine Weight (lbs / kg) | 56,000 / 25,401 | 56,000 / 25,401 | 41,000 / 18,597 | 50,000 / 22,680 |
Tender Loaded Weight (lbs / kg) | 27,000 / 12,247 | 27,000 / 12,247 | 25,000 / 11,340 | 27,000 / 12,247 |
Total Engine and Tender Weight (lbs / kg) | 83,000 / 37,648 | 83,000 / 37,648 | 66,000 / 29,937 | 77,000 / 34,927 |
Tender Water Capacity (gals / ML) | 1500 / 5.68 | 1500 / 5.68 | 1000 / 3.79 | 1500 / 5.68 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 27 / 13.50 | 27 / 13.50 | 19 / 9.50 | 23 / 11.50 |
Geometry Relating to Tractive Effort | ||||
Driver Diameter (in / mm) | 33 / 838 | 33 / 838 | 33 / 838 | 33 / 838 |
Boiler Pressure (psi / kPa) | 180 / 1240 | 180 / 1240 | 180 / 1240 | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 16" / 330x406 | 13" x 16" / 330x406 | 12" x 16" / 305x406 | 13" x 16" / 330x406 |
Tractive Effort (lbs / kg) | 12,537 / 5686.69 | 12,537 / 5686.69 | 10,682 / 4845.28 | 12,537 / 5686.69 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.91 | 3.91 | 3.28 | 3.27 |
Heating Ability | ||||
Tubes (number - dia) (in / mm) | 110 - 2" / 51 | 110 - 2" / 51 | 68 - 2" / 51 | 110 - 2" / 51 |
Flues (number - dia) (in / mm) | ||||
Flue/Tube length (ft / m) | 10.75 / 3.28 | 10.75 / 3.28 | 10.79 / 3.29 | 10.75 / 3.28 |
Firebox Area (sq ft / m2) | 50 / 4.65 | 62 / 5.76 | 44.50 / 4.14 | 62 / 5.76 |
Grate Area (sq ft / m2) | 10.30 / 0.96 | 10.30 / 0.96 | 7.60 / 0.71 | 10.30 / 0.96 |
Evaporative Heating Surface (sq ft / m2) | 664 / 61.71 | 676 / 62.83 | 423 / 39.31 | 676 / 62.83 |
Superheating Surface (sq ft / m2) | ||||
Combined Heating Surface (sq ft / m2) | 664 / 61.71 | 676 / 62.83 | 423 / 39.31 | 676 / 62.83 |
Evaporative Heating Surface/Cylinder Volume | 270.14 | 275.02 | 201.97 | 275.02 |
Computations Relating to Power Output (More Information) | ||||
Robert LeMassena's Power Computation | 1854 | 1854 | 1368 | 1854 |
Same as above plus superheater percentage | 1854 | 1854 | 1368 | 1854 |
Same as above but substitute firebox area for grate area | 9000 | 11,160 | 8010 | 11,160 |
Power L1 | 3681 | 3971 | 3051 | 3971 |
Power MT | 496.85 | 535.99 | 576.54 | 640.58 |