Class 3296 (Locobase 436)

Data from AT&SF 7 -1920 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Information about how many, when, and by whom this class was supplied from [] (also visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema.

Known to the Santa Fe as a "Consolidation Mallet," these two engines were rebuilt from 2-8-0s at Topeka in 1911. Like other Santa Fe mallets, this class has an additional 2,383 sq ft (221.83 sq m) ahead of the tube sheets as reheater space. Its grate area, on the other hand, was almost laughably small and was worked very hard. Another oddity was the weight distribution. On the front engine only the front driven axle carried as much as 50,000 lb (56,000 lb, actually) while the other three all bore 35,000-37,000 lb. The rear engine had a little more balance, but the axle loadings still varied from 42,500 lb (rearmost) to 54,000 lb (1st and 3rd).

The first engine -- 3296 -- later had its HP cylinders bushed to 22 inches (possibly because its maintainers could no longer get the original 24-in diameter true enough during reboring). Tractive effort rating dropped to 76,750 lb.

Restored to 2-8-0 arrangement in 1923.