The Orbit Jet was a fictional spaceship in the 1954 TV series Rocky Jones, Space Ranger. It strongly resembled a V-2 rocket in overall form, with a very prominent exhaust plume when flying, but had wings in addition to tail fins (even its radio call sign, "XV-2" relates it to that seminal World War II design). There were references in the dialog to the engines being "atomic". The Orbit Jet had a crew of two (pilot and copilot), but often had three or four others on board depending on the mission and destination. It often flew from Earth to inhabited moons of Jupiter and Saturn, which it seemed to reach in hours or days of time within the story.

Later in the series, another ship, the Silver Moon, was used, but it appeared almost identical to the Orbit Jet.

The Orbit Jet introduced many features that would become standard equipment on later TV and movie spaceships: