Usina Tiuma 2-6-0 Locomotives in Brazil
Class Details by Steve Llanso of Sweat House Media
Class 6 (Locobase 15183)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 66, p. 365 and Vol 72, pp. 159+. See also the account at [
], last accessed 8 May 2013. Works numbers were 53375 in July 1920 and 57668 in March 1924.
Purchased by the Williams Company, these little wood-burning Moguls worked for a long-running sugar central that opened in 1881 in Pernambuco State just northwest of Recife as the Central Mill Spo Lourento da Mata. The sugar mill was bought by the British-owned Northern Brazillian Sugar Factories Company and renamed Usina Ti+ma. The mill remained in operation for over 90 years and by the mid-1920s had 61 km (37.9 miles) of railway.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 6 |
| Locobase ID | 15183 |
| Railroad | Usina Tiuma |
| Country | Brazil |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 6-7 |
| Gauge | 60 cm |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1920 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7 / 2.13 |
| Engine Wheelbase (ft / m) | 12.83 / 3.91 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.55 |
| Overall Wheelbase (engine & tender) (ft / m) | 33.07 / 10.08 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 26,500 / 12,020 |
| Engine Weight (lbs / kg) | 30,000 / 13,608 |
| Tender Loaded Weight (lbs / kg) | 31,000 / 14,061 |
| Total Engine and Tender Weight (lbs / kg) | 61,000 / 27,669 |
| Tender Water Capacity (gals / ML) | 1200 / 4.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 15 / 7.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 10" x 16" / 254x406 |
| Tractive Effort (lbs / kg) | 6182 / 2804.11 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.29 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 59 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.99 / 3.35 |
| Firebox Area (sq ft / m2) | 31 / 2.88 |
| Grate Area (sq ft / m2) | 7.20 / 0.67 |
| Evaporative Heating Surface (sq ft / m2) | 326 / 30.29 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 326 / 30.29 |
| Evaporative Heating Surface/Cylinder Volume | 224.14 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1080 |
| Same as above plus superheater percentage | 1080 |
| Same as above but substitute firebox area for grate area | 4650 |
| Power L1 | 2728 |
| Power MT | 680.85 |