4-4-0 Steam Locomotives in Argentina

Argentine Midland


Class Details by Steve Llanso of Sweat House Media

Class unknown (Locobase 21248)

Data from "Compound Paasenger Engine-Wordsell and Von Borries", Engineer, Volume 68 (27 December 1889), pp. 532, 541.

LIke the compound 2-8-0 delivered to an Argentine railway (Locobase 12734), this Eight-wheel American-type's description contained little else but the title and data.

Principal Dimensions by Steve Llanso of Middle Run Media
Classunknown
Locobase ID21248
RailroadArgentine Midland
CountryArgentina
Whyte4-4-0
Number in Class
Road Numbers
Gauge5'6"
Number Built
BuilderNeilson & Co
Year1889
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)22.87 / 6.97
Ratio of driving wheelbase to overall engine wheelbase 0.31
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)51,834 / 23,512
Engine Weight (lbs / kg)85,456 / 38,762
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2375 / 9
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 1676
Boiler Pressure (psi / kPa)175 / 1210
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)23" x 24" / 584x610 (1)
Tractive Effort (lbs / kg)9331 / 4232.48
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.56
Heating Ability
Tubes (number - dia) (in / mm)160 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10 / 3.05
Firebox Area (sq ft / m2)79 / 7.34
Grate Area (sq ft / m2)16.50 / 1.53
Evaporative Heating Surface (sq ft / m2)901 / 83.71
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)901 / 83.71
Evaporative Heating Surface/Cylinder Volume322.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2888
Same as above plus superheater percentage2888
Same as above but substitute firebox area for grate area13,825
Power L14323
Power MT367.73

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