1st Steam ride at Hoosier Valley RR Museum for Bock Lumber #1! (North Judson, IN 9-3-22)

[@critterIMHO]

What makes it chuff like that when it’s not moving?

[@hoosierrail3588]

thanks for watching! im by no means an expert on steam engine operation, but im assuming the pressure needs to be released every so often whether it's transferred into physical motion or just plain released.

[@cple1]

Air pump