The success of these speed runs inspired Michaelson to keep pushing to go faster with rocket power. He strapped rockets to cars, motorcycles, go-karts, snowmobiles, boats, a wheelchair, an oversize runner snow sled, and a bicycle. He built a Buck Rogers jet pack, and a land-based jet pack that sent his own son Curt down a drag strip at more than 50 miles per hour with the boy wearing roller skates. Michaelson even got a port-a-potty to fly with rockets attached. In 2004, he was a founding member of the Civilian Space eXploration Team, and on May 17 of that year, became the first civilian to launch a rocket into space without any help from a government institution.