Data fromBaldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 44, p. 125-126. See Locobase 13126 for a full account and bibliography of the construction of this railroad. Works number was 33070 in December 1908.
Little 6-wheelers like the 101 were uncommon even on narrow-gauge common carriers, but the Northwestern of Brazil wanted at least one wood-burner of that size.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 101 |
| Locobase ID | 13300 |
| Railroad | Noroeste |
| Country | Brazil |
| Whyte | 2-4-0 |
| Number in Class | 1 |
| Road Numbers | 101 |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1908 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6 / 1.83 |
| Engine Wheelbase (ft / m) | 12.42 / 3.79 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.48 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 31,500 / 14,288 |
| Engine Weight (lbs / kg) | 37,500 / 17,010 |
| Tender Loaded Weight (lbs / kg) | 36,000 / 16,329 |
| Total Engine and Tender Weight (lbs / kg) | 73,500 / 33,339 |
| Tender Water Capacity (gals / ML) | 1800 / 6.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 26 / 13 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 37 / 940 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 7116 / 3227.77 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.43 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 111 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 6.58 / 2.01 |
| Firebox Area (sq ft / m2) | 40.28 / 3.74 |
| Grate Area (sq ft / m2) | 9.23 / 0.86 |
| Evaporative Heating Surface (sq ft / m2) | 324 / 30.10 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 324 / 30.10 |
| Evaporative Heating Surface/Cylinder Volume | 184.10 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1477 |
| Same as above plus superheater percentage | 1477 |
| Same as above but substitute firebox area for grate area | 6445 |
| Power L1 | 2946 |
| Power MT | 412.37 |