Most bathtub racing is either on water, which makes sense because they’re usually associated with water, or turned into modified wheel barrows and pushed for the race. Southern Tech, in Marietta, Georgia, had a different take on bathtub racing, turning the tubs into little rockets.
Bathtub racing at Southern Tech began in the late 1960s and continued into the early 1980s before taking a 20 year hiatus. Racing did return to Southern Tech during the early 2000s but seems to have once more stopped when Southern Tech was consolidated into nearby Kennesaw State University.
I attended the races, I think, in 1981. I was surprised at the speed these things could achieve. The bodies were bathtubs but the rest was pure racing machines. You can see from the photo that speeds were considerable and the racers took this sport seriously.