Jet mobiles were the primary mode of transportation for World Space Patrol personnel in Fireball XL5. Like their name implies, these vehicles ride on a cushion of air as they drive along. Each Fireball carries a compliment of Jet Mobiles to allow the crew to rapidly explore the surface of planets. They were also employed by Space Patrol security for night patrol duties around Space City. Each Jet Mobile has a compartment which can be used to store items of importance such as the standard issue ray gun.
- The Jet Mobiles were created as an extension of Gerry's desire to reduce the puppet walking in his shows since convincing walking motions were hard to accomplish. In this manner, the Jet Mobile cut down on the need for scenes like this drastically and would go on to inspire similar vehicles in Stingray and Thunderbirds (TV).