Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 79, p.226. Works numbers were 59695-59696 in November 1926.
Following close behind the tender couplings of the three small Pacifics bought for this Bahia State railway (Locobase 15439) came a pair of wood-burning Consolidations. Though smaller, the locomotives put more weight on their drivers, which brought the factor of adhesion closer to an acceptable level. Like the other Baldwins bought for this line in 1926 (see also Locobase 15440), these 2-8-0s were superheated and used 8" (203 mm) piston valves to admit steam to the cylinders. They also scaled 3% grades and negotiated curve radii of 328 feet (100 metres) while rolling on 21 kg/metre (42.33 lb/yard) rail.
They later operated on the Nazareth, which was owned by the Sudoeste do Bahia.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 28 |
Locobase ID | 15441 |
Railroad | Sudoeste da Bahia |
Country | Brazil |
Whyte | 2-8-0 |
Number in Class | 2 |
Road Numbers | 28-29 |
Gauge | Metre |
Number Built | 2 |
Builder | Baldwin |
Year | 1926 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 13 / 3.96 |
Engine Wheelbase (ft / m) | 20.50 / 6.25 |
Ratio of driving wheelbase to overall engine wheelbase | 0.63 |
Overall Wheelbase (engine & tender) (ft / m) | 44.37 / 13.52 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 22,040 |
Weight on Drivers (lbs / kg) | 82,000 / 37,195 |
Engine Weight (lbs / kg) | 95,000 / 43,091 |
Tender Loaded Weight (lbs / kg) | 62,500 / 28,350 |
Total Engine and Tender Weight (lbs / kg) | 157,500 / 71,441 |
Tender Water Capacity (gals / ML) | 3000 / 11.36 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 42 / 1067 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 22" / 432x559 |
Tractive Effort (lbs / kg) | 23,161 / 10505.67 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.54 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 100 - 2" / 51 |
Flues (number - dia) (in / mm) | 18 - 5.375" / 137 |
Flue/Tube length (ft / m) | 10.75 / 3.28 |
Firebox Area (sq ft / m2) | 99 / 9.20 |
Grate Area (sq ft / m2) | 14.50 / 1.35 |
Evaporative Heating Surface (sq ft / m2) | 927 / 86.12 |
Superheating Surface (sq ft / m2) | 215 / 19.97 |
Combined Heating Surface (sq ft / m2) | 1142 / 106.09 |
Evaporative Heating Surface/Cylinder Volume | 160.39 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2610 |
Same as above plus superheater percentage | 3106 |
Same as above but substitute firebox area for grate area | 21,206 |
Power L1 | 7319 |
Power MT | 787.10 |