Jets are a type of fixed-wing aircraft, driven by a jet engines, and are supported in air by dynamic action.
One of the characters in the holosuite program Julian Bashir, Secret Agent, named Mona Luvsitt, was an accomplished Cold War era jet pilot. (DS9: "Our Man Bashir")
During the 1960s, the US Air Force employed jets to protect its 498th Air Base in Omaha, Nebraska. (TOS: "Tomorrow is Yesterday")
In the mirror universe, various jet fighters and bombers were used in the establishment and enforcement of the Terran Empire during its 20th century. (ENT: "In a Mirror, Darkly")
Types of jets