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Description:
ATSF Class 2900 Steam Engine
In 1941 the Atchison, Topeka & Santa Fe Railway contracted Baldwin of Philadelphia for their third and last batch of 4-8-4's. Only the first batch had been coal burners, while the rest where oil.
No longer experimenting with 2-4-6-2 and 2-6-6-2 superheated express Mallet locomotives, ATSF chose to stick with the less complex and more dependable wheel/cylinder arrangements of the 4-8-4's.
Cylinders: 2 - 28 x 32in. (711 x 813mm)
Tractive effort: 79,960lb. (36,270kg.)
Fuel (oil): 5,830gallons (7,000 US)
Water: 20,400gallons (24,500 US)
Total weight: 961,000lb. (436t)
Length overall (including tender): 120ft. 10in. (36,830mm)
Max. Speed: Greater than 100mph (160km/h)
Built: 1941