Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 44, p. 135. Works numbers were 39255-39260 in February 1913.
In addition to the superheated Atlantics (Locobase 13971) and Ten-wheelers (Locobase 13972) the Bresilien ordered on 28 October 1912, the French-owned railway contracted for a sextet of superheated Consolidations. Like the others, these engines had 8" (203 mm) piston valves (with "vacuum valves") and the 451s used the same cylinders as the 357-class 4-6-0s. But the 2-8-0s rolled on considerably smaller drivers and thus exerted the greatest tractive effort.
The 451s were estimated to put 74,000 lb (33,566 kg) on the drivers, 10,000 lb (4,354 kg) on the truck, and weigh 84,000 lb (38,102 kg) overall. As delivered, however, the truck carried 2,800 lb (1,270 kg) less weight, and the drivers 6,000 lb (2,722 kg) more. Locobase doesn't know if the increase in adhesive weight was deliberate nor if the lighter load on the truck led to derailments.
An 8 December 1915 annotation by "R S McC" suggests a series of issues arose with this class: "For Hereafter: See letter dated Nov 1 1915 from R W Weidenbacker, File 863, referring to front foot plates, steam chest valves, pistons, crossheads, springs and spring rigging, injector checks [i.e., check valves?], cabs, tank roof, tender journal boxes, and tender wedge block." Page 138 of spec volume 44 gives details, which include the need for journal bearing surfaces to be as liberal as possible and well-lubricated and for all springs to be made heavier for very rough road service.
The problems may have arisen as a result of a note on the specs made on the order date that "Wherever practical, parts are to be made interchangeable with corresponding parts on the Ten-wheelers and Atlantic type locos now on order."
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 66, p.200; Vol 72, pp. ; Vol 78, pp.215+ . Works numbers were 55553-55556 in August 1922, 57956-57958 in August 1924, 58475-58477 in June 1925.
Part of a series of orders by this French-owned company, this quartet of Consolidations continued the basics of wood burning, Walschaert gear, 8" (203 mm) piston valves in a ruggedly built frame suspended on "extra strong" springs.
Tenders held 3.6 cords of wood in a bunker measuring 13 cubic metres (459 cu feet) in volume. The fuel supply dictated the use of a Rushton Improved cabbage stack to arrest sparks.
The stack needed tweaking after delivery "to improve steaming," according to a "Hereafter" note.The barrel was extended ten inches (254 mm) to 17" (432 mm) high, the stack cone diameter increased by an inch to 26" (660 mm) and the distance from the spark netting to the bottom of the cone decreased by an inch to 3" (76 mm).
The 1924 trio were ordered by the Fl'EB's nationalized successor, the Este Brasilero, to the same specs as were another three delivered in 1925. Weight on the drivers increased to 72,500 lb (32,885 kg).
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 36, p.278. Works numbers were 36037-36039 in February 1911.
The Bresilien sat down with a Baldwin representative on August 8, 1910 and began ordering locomotives of 3 different arrangements. The Moguls shown in Locobase 13772 were the first on the line followed immediately in builder-number series and in road numbers by this trio of bigger, more powerful wood-burning Consolidations. Their boilers were fatter and held more tubes of greater diameter and length. The cylinder diameter grew by an inch and boiler pressure increased by 10 psi.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | 451 | 457 | 62 |
Locobase ID | 13973 | 15106 | 13774 |
Railroad | Federaux de l'est Bresilien | Federaux de l'est Bresilien | Federaux de l'est Bresilien |
Country | Brazil | Brazil | Brazil |
Whyte | 2-8-0 | 2-8-0 | 2-8-0 |
Number in Class | 6 | 10 | 3 |
Road Numbers | 451-456 | 457-460, 467-469, 28-30 | 62-64 |
Gauge | Metre | Metre | Metre |
Number Built | 6 | 10 | 3 |
Builder | Baldwin | Baldwin | Baldwin |
Year | 1913 | 1922 | 1911 |
Valve Gear | Walschaert | Walschaert | Walschaert |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | 10.75 / 3.28 | 11.33 / 3.45 | 12 / 3.66 |
Engine Wheelbase (ft / m) | 17.17 / 5.23 | 18 / 5.49 | 19.42 / 5.92 |
Ratio of driving wheelbase to overall engine wheelbase | 0.63 | 0.63 | 0.62 |
Overall Wheelbase (engine & tender) (ft / m) | 42.46 / 12.94 | 42.85 / 13.06 | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 80,000 / 36,287 | 69,500 / 31,525 | 100,000 / 45,359 |
Engine Weight (lbs / kg) | 87,280 / 39,590 | 79,000 / 35,834 | 109,000 / 49,442 |
Tender Loaded Weight (lbs / kg) | 56,000 / 25,401 | 66,000 / 29,937 | 70,000 / 31,752 |
Total Engine and Tender Weight (lbs / kg) | 143,280 / 64,991 | 145,000 / 65,771 | 179,000 / 81,194 |
Tender Water Capacity (gals / ML) | 2800 / 10.61 | 3170 / 12.01 | 3500 / 13.26 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6 / 6 | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 33 / 16.50 | 29 / 14.50 | 42 / 21 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 38 / 965 | 38 / 965 | 42 / 1067 |
Boiler Pressure (psi / kPa) | 160 / 1100 | 170 / 1170 | 170 / 1170 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 | 15" x 20" / 381x508 | 18" x 22" / 457x559 |
Tractive Effort (lbs / kg) | 18,324 / 8311.64 | 17,112 / 7761.88 | 24,524 / 11123.91 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.37 | 4.06 | 4.08 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 120 - 1.75" / 44 | 150 - 2" / 51 | 180 - 2.25" / 57 |
Flues (number - dia) (in / mm) | 15 - 5" / 127 | ||
Flue/Tube length (ft / m) | 9.83 / 3 | 9.50 / 2.90 | 15 / 4.57 |
Firebox Area (sq ft / m2) | 95 / 8.83 | 89 / 8.27 | 93 / 8.64 |
Grate Area (sq ft / m2) | 14.80 / 1.37 | 13.80 / 1.28 | 19.60 / 1.82 |
Evaporative Heating Surface (sq ft / m2) | 822 / 76.37 | 829 / 77.02 | 1672 / 155.33 |
Superheating Surface (sq ft / m2) | 155 / 14.40 | ||
Combined Heating Surface (sq ft / m2) | 977 / 90.77 | 829 / 77.02 | 1672 / 155.33 |
Evaporative Heating Surface/Cylinder Volume | 176.61 | 202.66 | 258.04 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 2368 | 2346 | 3332 |
Same as above plus superheater percentage | 2747 | 2346 | 3332 |
Same as above but substitute firebox area for grate area | 17,632 | 15,130 | 15,810 |
Power L1 | 5861 | 3353 | 3925 |
Power MT | 646.06 | 425.44 | 346.13 |