Central do Brasil 2-6-0 Locomotives in Brazil
Class Details by Steve Llanso of Sweat House Media
Class 155 (Locobase 11990)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 17, p. 76 . Works numbers were 12123-12124, 12127 in August 1891.
The EFCB stocked up on Vauclain compounds in 1891, includling these Moguls. As with all such engines, each of the two 9 3/4" (248 mm) piston valves supplied live steam to the HP and and exhausted steam to the LP cylinder on each side.
Class Suburbana (Locobase 20550)
Data from Locomotive Diagram "Estrada de Ferro Central Do Brasil", Classe(2-6-0) at [
], last accessed 28 April 2019(Thanks to Teemu Koivumaki whose 2023 email included a comprehensive spreadsheet of Brazilian steam locomotive builders, works numbers, and owners.)
This class was originally purchased as 2-6-6T suburban tank engines (Locobase 2887) bearing road numbers 201-225.
According to Teemu Koivumaki, the Central converted the class to Mogul tender engines in 1907. At that point, the CofB renumbered the class 400-424.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 155 | Suburbana |
| Locobase ID | 11990 | 20550 |
| Railroad | Central do Brasil (EFCB) | Central do Brasil (EFCB) |
| Country | Brazil | Brazil |
| Whyte | 2-6-0 | 2-6-0 |
| Number in Class | 3 | 25 |
| Road Numbers | 155-157 /439-441 | 400-425 |
| Gauge | 5'3" | 5'3" |
| Number Built | 3 | |
| Builder | Burnham, Williams & Co | Brooks |
| Year | 1891 | 1894 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 15.33 / 4.67 | 14 / 4.27 |
| Engine Wheelbase (ft / m) | 22.92 / 6.99 | 21.75 / 6.63 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.67 | 0.64 |
| Overall Wheelbase (engine & tender) (ft / m) | 48.65 / 14.83 | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 84,000 / 38,102 | 110,000 / 49,895 |
| Engine Weight (lbs / kg) | 100,000 / 45,359 | 126,000 / 57,153 |
| Tender Loaded Weight (lbs / kg) | 72,000 / 32,659 | |
| Total Engine and Tender Weight (lbs / kg) | 198,000 / 89,812 | |
| Tender Water Capacity (gals / ML) | 3000 / 11.36 | 3441 / 13.03 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 47 / 23.50 | 61 / 30.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 56 / 1422 | 62 / 1422 |
| Boiler Pressure (psi / kPa) | 175 / 1210 | 170 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 24" / 305x610 | 18" x 24" / 457x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 20" x 24" / 508x610 | |
| Tractive Effort (lbs / kg) | 13,500 / 6123.50 | 18,123 / 8220.46 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.22 | 6.07 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 231 - 2" / 51 | 252 - 2" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 10.94 / 3.33 | 11.13 / 3.39 |
| Firebox Area (sq ft / m2) | 135.67 / 12.61 | 156 / 14.49 |
| Grate Area (sq ft / m2) | 19.80 / 1.84 | 25.60 / 2.38 |
| Evaporative Heating Surface (sq ft / m2) | 1445 / 134.29 | 1612 / 149.76 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1445 / 134.29 | 1612 / 149.76 |
| Evaporative Heating Surface/Cylinder Volume | 459.96 | 228.05 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 3465 | 4352 |
| Same as above plus superheater percentage | 3465 | 4352 |
| Same as above but substitute firebox area for grate area | 23,742 | 26,520 |
| Power L1 | 3974 | 5945 |
| Power MT | 312.90 | 357.45 |