In what pivotal year were both the Union Pacific Big Boy and the Chesapeake & Ohio Allegheny introduced?

Answer

1941

Both the Big Boy and the Allegheny, representing the apex of steam locomotive engineering for their respective railroads, were introduced in the same pivotal year, 1941.

In what pivotal year were both the Union Pacific Big Boy and the Chesapeake & Ohio Allegheny introduced?

#Videos

This Locomotive Had MORE POWER Than Big Boy! - YouTube

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