The Planet Strappers audiobook
by Raymond Z. Gallun (1911-1994)
The Planet Strappers started out as The Bunch, a group of student-astronauts in the back room of a store in Jarviston, Minnesota. They wanted off Earth, and they begged, borrowed and built what they needed to make it. They got what they wanted–a start on the road to the stars–but no one brought up on Earth could have imagined what was waiting for them Out There!