Central do Brasil 2-6-6 Locomotives in Brazil


Class Details by Steve Llanso of Sweat House Media

Class 200 (Locobase 2887)

Data from Catalogue Descriptive of Simple and Compound Locomotives built by Brooks Locomotive Works, Dunkirk, NY (Buffalo, NY: Matthew-Northrup Company, 1899) and diagram of the later 2-6-0 configuration presented on the Centro-Oeste website at [link], last accessed 28 Januray 2018; and "Locomotives for Brazil", National Car and Locomotive Builder, Volume 25, No 11 (November 1894), pp. 178-179. info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. The latter, highly useful document shows that this design was delivered in several batches. Works numbers 2455-2464 in August 1894; 2 497-2500 &, 2507-2513 in January 1895. The shipment was part of a large 60-locomotive order for both the broad and metre gauge. See Locobase 4767.

This large, broad-gauge tank engine had a wagon top boiler with a coned section between the steam and sand domes. It was also outfitted with a clerestory cab at one end and Pintsch gas headlights at each end.. Given its driver diameter, it was probably a dual-purpose locomotive.

Sometime later, the EFCB solved the excessive rigidity of a 2-6-6T arrangement by removing the side tanks and adding a separate tender; see Locobase 20550.

Principal Dimensions by Steve Llanso of Middle Run Media
Class200
Locobase ID2887
RailroadCentral do Brasil (EFCB)
CountryBrazil
Whyte2-6-6T
Number in Class25
Road Numbers200-224
Gauge5'3"
Number Built25
BuilderBrooks
Year1894
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)14 / 4.27
Engine Wheelbase (ft / m)34 / 10.36
Ratio of driving wheelbase to overall engine wheelbase 0.41
Overall Wheelbase (engine & tender) (ft / m)34 / 10.36
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)110,000 / 49,895
Engine Weight (lbs / kg)176,000 / 79,832
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)176,000 / 79,832
Tender Water Capacity (gals / ML)2400 / 9.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.50 / 3
Minimum weight of rail (calculated) (lb/yd / kg/m)61 / 30.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62 / 1575
Boiler Pressure (psi / kPa)184.20 / 1270
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x610
Tractive Effort (lbs / kg)19,637 / 8907.20
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.60
Heating Ability
Tubes (number - dia) (in / mm)252 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.11 / 3.39
Firebox Area (sq ft / m2)156 / 14.50
Grate Area (sq ft / m2)24.60 / 2.29
Evaporative Heating Surface (sq ft / m2)1612 / 149.81
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1612 / 149.81
Evaporative Heating Surface/Cylinder Volume228.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4531
Same as above plus superheater percentage4531
Same as above but substitute firebox area for grate area28,735
Power L16441
Power MT387.27

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