Data from DeGolyer, Volume 66, pp. 313+. Works numbers were 55296-55297 in March 1922.
These were wood-burning Consolidations fitted with Rushton Improved cabbage stacks. Their owner was a large construction company.
Data from DeGolyer, Volume 66, pp. 316+. Works numbers
These were wood-burning Consolidations fitted with Rushton Improved cabbage stacks. Surprisingly, although they had shorter boilers and consequently less heating surface area than the other Norton Griffith 2-8-0s shown in Locobsae 15159, they had more cylinder volume and consequently more tractive effort.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 1 | 1 |
| Locobase ID | 15158 | 15160 |
| Railroad | Obras do Porto Amarratpo | Obras do Porto Amarratpo |
| Country | Brazil | Brazil |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 2 | 2 |
| Road Numbers | 1-2 | 1-2 |
| Gauge | Metre | Metre |
| Number Built | 2 | 2 |
| Builder | Baldwin | Baldwin |
| Year | 1922 | 1922 |
| Valve Gear | Walschaert | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 10.25 / 3.12 | 12.47 / 3.80 |
| Engine Wheelbase (ft / m) | 17.25 / 5.26 | 20.01 / 6.10 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.59 | 0.62 |
| Overall Wheelbase (engine & tender) (ft / m) | 43.56 / 13.28 | 46.10 / 14.05 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 78,000 / 35,380 | 79,000 / 35,834 |
| Engine Weight (lbs / kg) | 85,000 / 38,555 | 89,001 / 40,370 |
| Tender Loaded Weight (lbs / kg) | 55,000 / 24,948 | 75,499 / 34,246 |
| Total Engine and Tender Weight (lbs / kg) | 140,000 / 63,503 | 164,500 / 74,616 |
| Tender Water Capacity (gals / ML) | 2500 / 9.47 | 3701 / 14.02 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 | 33 / 16.50 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 38 / 965 | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 160 / 1100 | 159.50 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 | 17.01" x 22.01" / 432x559 |
| Tractive Effort (lbs / kg) | 18,324 / 8311.64 | 20,557 / 9324.51 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.26 | 3.84 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 154 - 2" / 51 | 145 - 2.008" / 51 |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 14.33 / 4.37 | 10.50 / 3.20 |
| Firebox Area (sq ft / m2) | 75 / 6.97 | 107.96 / 10.03 |
| Grate Area (sq ft / m2) | 18.50 / 1.72 | 17.87 / 1.66 |
| Evaporative Heating Surface (sq ft / m2) | 1224 / 113.71 | 899 / 83.52 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1224 / 113.71 | 899 / 83.52 |
| Evaporative Heating Surface/Cylinder Volume | 262.99 | 155.29 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 2960 | 2850 |
| Same as above plus superheater percentage | 2960 | 2850 |
| Same as above but substitute firebox area for grate area | 12,000 | 17,220 |
| Power L1 | 3481 | 2775 |
| Power MT | 393.55 | 309.76 |