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Central Mexicano class E
Mexico | 1890 | 15 produced
Locomotive Engineering, March 1890

The Central Mexicano also received a total of 15 locomotives of the US type of the Mason-Fairlie in 1890, which essentially corresponded to the British Single Fairlie. Under the boiler barrel was a bogie that held the cylinders, three driving axles and a leading axle. At the rear, the tender rested on a three-axle bogie. The firebox hang between the bogies and could therefore be built deep enough.

In contemporary depictions, the locomotives were described as a successful design with a comfortable cab. Although they could negotiate the tightest curves with ease, the running smoothness was apparently not particularly good. Nevertheless, all locomotives were already scrapped between 1899 and 1908. This is probably due to the fact that more modern locomotives without moving steam lines were now available.

General
Built1890
ManufacturerBaldwin
Axle config2-6-6T (Single Fairlie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase40 ft 11 1/2 in
Fixed wheelbase9 ft 4 in
Service weight173,200 lbs
Adhesive weight93,200 lbs
Axle load31,067 lbs
Water capacity3,500 us gal
Fuel capacitycoal
Power
Power sourcesteam
Estimated power575 hp (429 kW)
Optimal speed17 mph
Starting effort21,649 lbf
Power Plant
Driver diameter49 in
Boiler pressure130 psi
Expansion typesimple
Cylinderstwo, 20 x 24 in
Boiler
Grate area29.8 sq ft
Firebox area151.2 sq ft
Tube heating area1,645.8 sq ft
Evaporative heating area1,797 sq ft
Total heating area1,797 sq ft
Calculated Values
steam locomotive
Mason Bogie
freight
passenger
last changed: 03/2023
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