Some data from Carlos Alberto Fernandez Priotti in Bryan Attewell ([] Steam Locomotive simulator program (April 2000), supplemented by "Thirty '15B' Class 4-8-0 for the Buenos Ayres [sic] Great Southern Railway", Vulcan Magazine, archived at [
], last accessed 7 July 2007. See also ee also D[ennis] Rock Carling, 4-8-0 Tender Locomotives (New York: Drake Publishers Inc, 1972), p. 72 and serial #197 in table XI, pp. 106-107.Works numbers were 5628-5657
Principal Dimensions by Steve Llanso of Sweat House Media | |
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Class | Class 15B |
Locobase ID | 2457 |
Railroad | Buenos Ayres Great Southern |
Country | Argentina |
Whyte | 4-8-0 |
Number in Class | 30 |
Road Numbers | 1561-1590 |
Gauge | 5'6" |
Number Built | 30 |
Builder | Vulcan Foundry |
Year | 1949 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 18.50 / 5.64 |
Engine Wheelbase (ft / m) | 29.75 / 9.07 |
Ratio of driving wheelbase to overall engine wheelbase | 0.62 |
Overall Wheelbase (engine & tender) (ft / m) | 69.60 / 21.21 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 35,280 / 16,003 |
Weight on Drivers (lbs / kg) | 139,552 / 63,300 |
Engine Weight (lbs / kg) | 181,688 / 82,412 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 7200 / 27.27 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2887 / 10,927 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 58 / 29 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 68 / 1727 |
Boiler Pressure (psi / kPa) | 225 / 15.50 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19.5" x 28" / 495x711 |
Tractive Effort (lbs / kg) | 29,945 / 13582.84 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.66 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 134 - 2.125" / 54 |
Flues (number - dia) (in / mm) | 27 - 5.5" / 140 |
Flue/Tube length (ft / m) | 14 / 4.27 |
Firebox Area (sq ft / m2) | 190 / 17.66 |
Grate Area (sq ft / m2) | 32.60 / 3.03 |
Evaporative Heating Surface (sq ft / m2) | 1752 / 162.83 |
Superheating Surface (sq ft / m2) | 348 / 32.34 |
Combined Heating Surface (sq ft / m2) | 2100 / 195.17 |
Evaporative Heating Surface/Cylinder Volume | 181.02 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 7335 |
Same as above plus superheater percentage | 8582 |
Same as above but substitute firebox area for grate area | 50,018 |
Power L1 | 15,371 |
Power MT | 971.31 |