Data from Alco class 282 S182 Order S-1837 builder's card supplied in February 2023 by Teemu Koivumaki. Works numbers were 69445-69449 in September 1941.
Two striking features of these meter-gauge Mikados were the large grates and fireboxes. The latter's heating surface area included 39.5 sq ft (3.67 sq m) of thermic syphons to offer one of the very highest areas for the gauge. Even when adding 2-8-2s running on the slightly wider "Cape" gauge (3 ft 6 in/1,067 mm), the 153s remained near the top of the list.
Heavy grades challenged the class, limiting trailing load to nine loaded wagons. Even so, much of the class operated into the 1980s.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 153 |
| Locobase ID | 21121 |
| Railroad | Dona Tereza Cristina |
| Country | Brazil |
| Whyte | 2-8-2 |
| Number in Class | 5 |
| Road Numbers | 153-157 |
| Gauge | Metre |
| Number Built | 5 |
| Builder | Alco-Schenectady |
| Year | 1941 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11.25 / 3.43 |
| Engine Wheelbase (ft / m) | 26.83 / 8.18 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.42 |
| Overall Wheelbase (engine & tender) (ft / m) | 49.87 / 15.20 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 90,000 / 40,823 |
| Engine Weight (lbs / kg) | 127,500 / 57,833 |
| Tender Loaded Weight (lbs / kg) | 61,900 / 28,077 |
| Total Engine and Tender Weight (lbs / kg) | 189,400 / 85,910 |
| Tender Water Capacity (gals / ML) | 2600 / 9.85 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5 / 4.50 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 38 / 19 |
| 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) | 16" x 22" / 406x559 |
| Tractive Effort (lbs / kg) | 20,517 / 9306.37 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 94 - 2" / 51 |
| Flues (number - dia) (in / mm) | 15 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 11.75 / 3.58 |
| Firebox Area (sq ft / m2) | 186.50 / 17.33 |
| Grate Area (sq ft / m2) | 47.60 / 4.42 |
| Evaporative Heating Surface (sq ft / m2) | 1006 / 93.46 |
| Superheating Surface (sq ft / m2) | 213 / 19.79 |
| Combined Heating Surface (sq ft / m2) | 1219 / 113.25 |
| Evaporative Heating Surface/Cylinder Volume | 196.50 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 8568 |
| Same as above plus superheater percentage | 10,025 |
| Same as above but substitute firebox area for grate area | 39,277 |
| Power L1 | 9489 |
| Power MT | 929.76 |