The Great Northern's class N-3 2-8-8-0 articulateds began life as class N-1 compound locomotives delivered by Baldwin Locomotive Works in 1912, but were converted to simple articulateds in the 1920s. In 1940-41 the railroad rebuilt them again, with new frames and roller bearings on the driving axles, and reclassified them. With four cylinders of 22x32 inches, 63-inch drivers, and 250 p.s.i. of boiler pressure, they developed 104,482 pounds of tractive effort. Their evaporative heating surface totaled 5805 square feet, their superheater surface 2,188 square feet, and their grate area (enlarged in the rebuild) 95 square feet. Their squared Belpaire firebox was typical of GN practice. These versatile oil-fueled engines hauled fast freight, heavy ore trains, and even passenger troop trains during World War II, in which duty they were said to be capable of up to 60 miles per hour. The Great Northern contributed this image of No. 2024, first of the rebuilds to be completed in 1940, to the 1951 edition of World Railways. Almost all these distinctive locomotives were retired by 1955.