Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 44, p. 3. Works numbers were 39195-39196 in February 1913.
A larger version of the 0-6-2Ts built for the 60-cm gauge and shown in Locobase 13653, this pair could burn coal or wood. Their trailing trucks had a 3" (76-mm) swing to either side. The cab had a double roof, a frequently found feature in such tropical conditions.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 20, p. 110. Works numbers were 14763-14765 in March 1896 and 15078-15081 in November.
The specifications say that this wood-burning tank was headed for the Descalvadense Section, where the sharpest curves were measured at 131-ft radius or 40 degrees. They had noticeably smaller boilers than did their nearly identical counterparts operating on the metre gauge (Locobase 12225).
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 20, p. 110. Works numbers were 15078-15081.
Locobase is puzzled when he compares this batch of radial-tank wood burners bought for the metre gauge with the broad-gauge engines of identical power produced earlier in the year and described in Locobas 12190. Curiously, although the power dimensions are identical, the boiler is much smaller in the broad-gauge locomotives.
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 44, p. 1. Works numbers were 37662-37663 in April 1912.
The Baldwin specs for these wood-burning radial tanks depict a narrow, cramped, lightly built railway. The rail weighed 18-kg/metre (36 lb/yard) with ties laid every 18" (0.5 metres), a 3% grade measuring 1,420 metres (4,659 ft), another of 2.5% and 1,600 metres (5,249 ft) long, and a minimum curve radius of 85 meters (279 ft) or 13.5 degrees.
This pair was rebuilt twice. The first time featured the installation of a pony truck under the smokebox that duplicated the arrangement of the slightly later 10-11 (Locobase 13988). After the sale to Usina Tiuma, the engines were renumbered as 9 and 10 and rebuilt again. The 9 now lost its rear traling axle (thus, a 2-6-0T). The 10 lost its rear axle as well, but gained a tender and was a 2-6-0.
Principal Dimensions by Steve Llanso of Middle Run Media | ||||
---|---|---|---|---|
Class | 26 | 51 | 68 | 8 |
Locobase ID | 13654 | 12190 | 12225 | 13653 |
Railroad | Paulista | Paulista | Paulista | Paulista |
Country | Brazil | Brazil | Brazil | Brazil |
Whyte | 0-6-2ST | 0-6-2ST | 0-6-2ST | 0-6-2T |
Number in Class | 2 | 7 | 4 | 2 |
Road Numbers | 26, 88 | 51-53, 64-67 / 210-212 | 68-71 | 8-9 |
Gauge | Metre | 5'3" | Metre | 60 cm |
Number Built | 2 | 7 | 4 | 2 |
Builder | Baldwin | Burnham, Williams & Co | Burnham, Williams & Co | Baldwin |
Year | 1913 | 1896 | 1896 | 1912 |
Valve Gear | Walschaert | Stephenson | Stephenson | Walschaert |
Locomotive Length and Weight | ||||
Driver Wheelbase (ft / m) | 8.67 / 2.64 | 9 / 2.74 | 8.67 / 2.64 | 7 / 2.13 |
Engine Wheelbase (ft / m) | 17.83 / 5.43 | 15 / 4.57 | 17.83 / 5.43 | 14.08 / 4.29 |
Ratio of driving wheelbase to overall engine wheelbase | 0.49 | 0.60 | 0.49 | 0.50 |
Overall Wheelbase (engine & tender) (ft / m) | 17.83 / 5.43 | 15 / 4.57 | 17.83 / 5.43 | 14.08 / 4.29 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||||
Weight on Drivers (lbs / kg) | 63,000 / 28,576 | 64,250 / 29,143 | 60,000 / 27,216 | 41,500 / 18,824 |
Engine Weight (lbs / kg) | 73,000 / 33,112 | 74,250 / 33,679 | 47,000 / 21,319 | |
Tender Loaded Weight (lbs / kg) | ||||
Total Engine and Tender Weight (lbs / kg) | ||||
Tender Water Capacity (gals / ML) | 800 / 3.03 | 800 / 3.03 | 800 / 3.03 | 550 / 2.08 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 35 / 17.50 | 36 / 18 | 33 / 16.50 | 23 / 11.50 |
Geometry Relating to Tractive Effort | ||||
Driver Diameter (in / mm) | 38 / 965 | 44 / 1118 | 44 / 1118 | 33 / 838 |
Boiler Pressure (psi / kPa) | 170 / 1170 | 150 / 1030 | 150 / 1030 | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 18" / 381x457 | 15" x 20" / 381x508 | 15" x 20" / 381x508 | 12" x 16" / 305x406 |
Tractive Effort (lbs / kg) | 15,401 / 6985.78 | 13,040 / 5914.85 | 13,040 / 5914.85 | 9495 / 4306.86 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.09 | 4.93 | 4.60 | 4.37 |
Heating Ability | ||||
Tubes (number - dia) (in / mm) | 124 - 1.75" / 44 | 75 - 2" / 51 | 124 - 1.75" / 44 | 87 - 1.75" / 44 |
Flues (number - dia) (in / mm) | ||||
Flue/Tube length (ft / m) | 11.75 / 3.58 | 11.06 / 3.37 | 11.75 / 3.58 | 10.17 / 3.10 |
Firebox Area (sq ft / m2) | 76 / 7.06 | 51.75 / 4.81 | 72 / 6.69 | 42 / 3.90 |
Grate Area (sq ft / m2) | 10.80 / 1 | 11.25 / 1.05 | 10.60 / 0.99 | 9.40 / 0.87 |
Evaporative Heating Surface (sq ft / m2) | 739 / 68.65 | 482 / 44.80 | 735 / 68.31 | 444 / 41.25 |
Superheating Surface (sq ft / m2) | ||||
Combined Heating Surface (sq ft / m2) | 739 / 68.65 | 482 / 44.80 | 735 / 68.31 | 444 / 41.25 |
Evaporative Heating Surface/Cylinder Volume | 200.73 | 117.83 | 179.68 | 211.99 |
Computations Relating to Power Output (More Information) | ||||
Robert LeMassena's Power Computation | 1836 | 1688 | 1590 | 1504 |
Same as above plus superheater percentage | 1836 | 1688 | 1590 | 1504 |
Same as above but substitute firebox area for grate area | 12,920 | 7763 | 10,800 | 6720 |
Power L1 | 3273 | 1992 | 2945 | 2748 |
Power MT | 343.61 | 205.06 | 324.63 | 437.95 |