- You may also be looking for the 22nd century J class freighter.
Harry Mudd's antiquated class J cargo ship, in 2266.
The class J starship was a small, antiquated starship design used by the Federation and independent traders alike well into the mid-23rd century.
In 2266, Harcourt Fenton Mudd possessed "a small class J cargo ship" which he utilized as a transport. (TOS: "Mudd's Women")
The same year, Starfleet maintained an "old Class J starship," with an apparently defective baffle plate, as a cadet vessel. (TOS: "The Menagerie, Part I")
The inhabitants of the Deneva colony also had a class J starship at their disposal, described as "a one-man vessel of Denevan configuration." (TOS: "Operation -- Annihilate!")
Ships of the class
Appendices
Appearances
Background
It was initially believed that when the J class was introduced in Star Trek: Enterprise that the writers were tipping their hat to the ship class that was twice referenced in the original Star Trek. This association was discovered to be false when "Mudd's Women" was remastered and Mudd's ship was given a completely new design from what was shown in Enterprise.
In the case of the Denevan starship, the class J model, albeit slightly scaled down, was a reused to represent that ship as well.