According to dynamometer tests, which locomotive claims the title for the highest verified sustained output, generating approximately 7,498 horsepower?

Answer

C&O Allegheny

Dynamometer tests showed the C&O H-8 Allegheny generating an astonishing 7,498 horsepower, significantly higher than the Big Boy's published rating of around 6,290 HP.

According to dynamometer tests, which locomotive claims the title for the highest verified sustained output, generating approximately 7,498 horsepower?

#Videos

This Locomotive Had MORE POWER Than Big Boy! - YouTube

powersteam enginelocomotiveAlleghenyBig Boy