The locomotive that rivaled the Big Boy and the conversation of power vs size is still a subject of debate (amongst us train nuts). 😉 Here's the Chesapeake & Ohio "Allegheny", a 2-6-6-6 Lima built monster that the C&O would use to pull heavy coal trains over the Allegheny Mountains. From the Herron Rail Video show "Articulateds, America’s Biggest Steam" https://rfd.video/Articulateds | Steam Giants
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