ndem 4-8-4 Locomotives in Mexico

The Ferrocarriles Nacionales de Mexico (National Railways of Mexico) bought a total of 32 Northern type, Class QR-1, locomotives in 1946. NdeM purchased 16 from the American Locomotive Company and 16 from the Baldwin Locomotive Works.

On the NdeM these locomotives were called "Niágaras" and were among the few that it bought new. Most of its motive power was obtained second-hand from U. S. railroads.

All 32 of the "Niágaras" (road numbers 3025 through 3056) had 70" drivers, 25 x 30 cylinders, a boiler pressure of 250 psi, a tractive effort of 57,000 lbs and weighed 387,000 pounds.

There are 12 surviving "Niágaras". Here are their locations.


Specifications for Class QR-1
Wheel Arrangement:4-8-4
Length:100 ft.-7/8 in.
Drivers:70" dia.
Weight on Drivers:241,000 lbs
Locomotive Weight:387,000 lbs
Locomotive & Tender Weight:632,000 lbs
Grate Area:77.3 sq ft
Cylinders (dia. x stroke):(2) 25" x 30"
Boiler Pressure:250 psi
Tractive Effort:57,000 lbs
Tender Capacity
Water:15,000 gals.
Oil:6,000 gals.

Photos

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