Buenos Ayres and Ensenada 4-4-0 Locomotives in Argentina

Class Details by Steve Llanso of Sweat House Media

Class Cellman (Locobase 20940)

Data from "Buenos Ayres and Ensenada Railway", Locomotives Manufactured by Messrs Kitson & Co Ltd, (Leeds, England: n.d.). See also Aristides Bryan Dominguez, El Ferrocarril Buenos Aires-Puerton de Ensenada, second revision 2015, archived at [], last accessed 11 September 2021. Works numbers were 3000-3001, 3053, 3055 in 1887.

A quartet of small Eight-wheelers hauled passenger traffic. In addition to Cellman (a very 21st C-sounding name), the set included Pelligrini, Victoria, and San Fernando. The lead set of drivers turned within splashers while the rear set was partially enclosed by boxes. Each of the tender's two bogie trucks compensated its two axles with external swan-neck beams.

A British consortium in 1857 sought to build a deepwater port in Ensenada on the Argentine coast not far from the capital Buenos Aires. To connect the two cities, they obtained a charter for a railway first known as the FC de La Boca. It included BA, La Boca, Barracas, Quilmes and ending in Ensenada.

Construction began in 1863 and was completed 61 km (39 miles) away in Ensenada when the final section between Quilmes and Ensenada opened on 31 December 1872. In that same year FC La Boca was reorganized as the BA&PE Railway (Buenos Aires al Puerto de Ensenada). After two decades of what Bryan Dominguez describes as "fierce competition", BA&EP/s assets came under control of the FC del Sur in 1897.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID20940
RailroadBuenos Ayres and Ensenada
Number in Class4
Road Numbers215, 219, 218, 220
Number Built4
BuilderKitson & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)20.37 / 6.21
Ratio of driving wheelbase to overall engine wheelbase 0.34
Overall Wheelbase (engine & tender) (ft / m)42.65 / 13
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)44,800 / 20,321
Engine Weight (lbs / kg)73,920 / 33,530
Tender Loaded Weight (lbs / kg)62,720 / 28,449
Total Engine and Tender Weight (lbs / kg)136,640 / 61,979
Tender Water Capacity (gals / ML)2400 / 9.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)66 / 1676
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)11,078 / 5024.90
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.04
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)82 / 7.62
Grate Area (sq ft / m2)17 / 1.58
Evaporative Heating Surface (sq ft / m2)798 / 74.14
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)798 / 74.14
Evaporative Heating Surface/Cylinder Volume142.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2380
Same as above plus superheater percentage2380
Same as above but substitute firebox area for grate area11,480
Power L13331
Power MT327.84

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