: The 14-wheel tender carries roughly 25,000 gallons of water and 28–32 tons of coal. Where to See a Big Boy Today Union Pacific Big Boy: History & Facts - Ftp
The Big Boy is a marvel of 1940s engineering, built to a scale that remains unmatched by other steam locomotives. FE Big boy
: The frame is "hinged" to navigate tight curves. : The 14-wheel tender carries roughly 25,000 gallons