Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 19, p. 114. Works number was 14050 in May 1894.
Diminuitive though it may have been, the Urbana traveled on standard-gauge rails. Locobase is amused by the meticulous devotion to accuracy in the spec, where the tube length of 8 feet is crossed out and replaced with 7 ft 11 7/8". As "big" as it was, this tank was still expected to negotiate 20-metre curves (practically turning within its own length).
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Urbana |
| Locobase ID | 12109 |
| Railroad | Cia Urbana de Paraense |
| Country | Brazil |
| Whyte | 0-4-2T |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1894 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.52 |
| Engine Wheelbase (ft / m) | 11.50 / 3.51 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.43 |
| Overall Wheelbase (engine & tender) (ft / m) | 11.50 / 3.51 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 32,000 / 14,515 |
| Engine Weight (lbs / kg) | 36,000 / 16,329 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 450 / 1.70 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 27 / 13.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 38 / 965 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 16" / 254x406 |
| Tractive Effort (lbs / kg) | 5368 / 2434.89 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.96 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 96 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.99 / 2.44 |
| Firebox Area (sq ft / m2) | 40.30 / 3.75 |
| Grate Area (sq ft / m2) | 5.73 / 0.53 |
| Evaporative Heating Surface (sq ft / m2) | 338 / 31.41 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 338 / 31.41 |
| Evaporative Heating Surface/Cylinder Volume | 232.39 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 860 |
| Same as above plus superheater percentage | 860 |
| Same as above but substitute firebox area for grate area | 6045 |
| Power L1 | 3524 |
| Power MT | 485.57 |