Data from Alco class 460-81 Order C-555 builder's card supplied in February 2023 by Teemu Koivumaki.. Works numbers were 60510-60511 in June 1919.
A decade after Alco turned out a trio of Ten-wheelers for the Timbo a Propia (Locobase 20191), its Paterson, NJ subsidiary produced another two for the T-A to the same specifications. Its operator was a new coal road in Santa Catharina state built by the Brazilian government and leased to the Cia Brasiliera Carbonifera de Ararangua.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1 |
| Locobase ID | 21124 |
| Railroad | Tubarao a Ararangua |
| Country | Brazil |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 1-2 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Alco-Cooke |
| Year | 1919 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10 / 3.05 |
| Engine Wheelbase (ft / m) | 19.33 / 5.89 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.52 |
| Overall Wheelbase (engine & tender) (ft / m) | 43 / 13.11 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 63,000 / 28,576 |
| Engine Weight (lbs / kg) | 80,500 / 36,514 |
| Tender Loaded Weight (lbs / kg) | 59,000 / 26,762 |
| Total Engine and Tender Weight (lbs / kg) | 139,500 / 63,276 |
| Tender Water Capacity (gals / ML) | 2600 / 9.85 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 4 / 3.60 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 35 / 17.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 45 / 1143 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 |
| Tractive Effort (lbs / kg) | 15,474 / 7018.90 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 132 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.79 / 3.59 |
| Firebox Area (sq ft / m2) | 87 / 8.08 |
| Grate Area (sq ft / m2) | 15.20 / 1.41 |
| Evaporative Heating Surface (sq ft / m2) | 896 / 83.24 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 896 / 83.24 |
| Evaporative Heating Surface/Cylinder Volume | 192.51 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2432 |
| Same as above plus superheater percentage | 2432 |
| Same as above but substitute firebox area for grate area | 13,920 |
| Power L1 | 3432 |
| Power MT | 360.30 |