Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 21, p. 196. Works number was 15985 in June 1898.
About-average size wood-burning Eight-wheeler for the 3-foot gauge. Compared to other locomotives on the line, this was the leading passenger locomotive. When the FC de Vera Cruz stood up in 1914, it renumbered the 7 as their 2.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | Medellin |
Locobase ID | 12277 |
Railroad | Vera Cruz a Alvarado |
Country | Mexico |
Whyte | 4-4-0 |
Number in Class | 1 |
Road Numbers | 4 / 7 / 2 |
Gauge | 3' |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1898 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8.17 / 2.49 |
Engine Wheelbase (ft / m) | 20.08 / 6.12 |
Ratio of driving wheelbase to overall engine wheelbase | 0.41 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 38,000 / 17,237 |
Engine Weight (lbs / kg) | 56,000 / 25,401 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1600 / 6.06 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 32 / 16 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 46 / 1168 |
Boiler Pressure (psi / kPa) | 160 / 970 |
High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
Tractive Effort (lbs / kg) | 10,431 / 4731.43 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.64 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 162 - 1.75" / 44 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 9.58 / 2.92 |
Firebox Area (sq ft / m2) | 73 / 6.78 |
Grate Area (sq ft / m2) | 10.10 / 0.94 |
Evaporative Heating Surface (sq ft / m2) | 780 / 72.49 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 780 / 72.49 |
Evaporative Heating Surface/Cylinder Volume | 242.99 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1616 |
Same as above plus superheater percentage | 1616 |
Same as above but substitute firebox area for grate area | 11,680 |
Power L1 | 4375 |
Power MT | 507.64 |