The levitating lavatory roared skywards, made an arc, then, slowed by parachutes, almost landed on a spectator's pick-up truck 2,000 feet away.
Michiana Rocketry club members planned the project for more than two years. The club is trying to increase awareness of rocketry as a hobby and prove it is possible to turn a porta-potty into a rocket and launch it successfully.
The Herald Palladium newspaper said lift-off occurred in a soya bean field near Three Oaks in Berrien County. About 30 people worked on the rocket, from engineers to sales people who lined up sponsors.
Rocket enthusiast Bob Bycraft has said it was carefully planned and not "barnyard engineering".