Data from Eduardo JosT de Jesus Coelho, Locomotivas articuladas: as gigantes da era do vapor no Brasil (Rio de Janeiro: Sociedade de Pesquisa para Memorial do Trem, 2003 ), p. 42. Works numbers were 61887 in 1935, 62201 in 1937, and 64136-64138 in 1940.
This was a relatively small simple articulated locomotive. Its cabbage stack suggests that it was a wood-burner. Although it had 6" (152 mm) piston valves, the Baldwin ad from which the data are taken does not indicate that it was superheated.
Its eight axles spread its weight over the 45-lb/yard (22.5 kg/m) rail.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 401 |
Locobase ID | 12743 |
Railroad | EF Goyaz |
Country | Brazil |
Whyte | 2-6-6-2 |
Number in Class | 5 |
Road Numbers | 401-405 |
Gauge | metre |
Number Built | 5 |
Builder | Baldwin |
Year | 1935 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 15.33 / 2.34 |
Engine Wheelbase (ft / m) | 36.09 / 11 |
Ratio of driving wheelbase to overall engine wheelbase | 0.42 |
Overall Wheelbase (engine & tender) (ft / m) | 61.27 / 18.68 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 122,498 / 55,564 |
Engine Weight (lbs / kg) | 135,699 / 61,552 |
Tender Loaded Weight (lbs / kg) | 63,158 / 28,648 |
Total Engine and Tender Weight (lbs / kg) | 198,857 / 90,200 |
Tender Water Capacity (gals / ML) | |
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) | 43 / 1092 |
Boiler Pressure (psi / kPa) | 159.50 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14.02" x 21.97" / 356x558 (4) |
Tractive Effort (lbs / kg) | 27,231 / 12351.79 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.50 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | |
Grate Area (sq ft / m2) | 26.04 / 2.42 |
Evaporative Heating Surface (sq ft / m2) | 1254 / 116.58 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1254 / 116.58 |
Evaporative Heating Surface/Cylinder Volume | 159.72 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4153 |
Same as above plus superheater percentage | 4153 |
Same as above but substitute firebox area for grate area | |
Power L1 | |
Power MT |