- For other uses, see Challenger.
The Challenger-class was a type of Federation starship, a variant of the Constellation-class, a class of deep space explorer in Starfleet service in the 24th century.
History and specifications[]
The Challenger-class was developed as a variant of the Constellation-class, replacing the lower warp nacelle pair with a secondary hull. The USS Marco Polo was a Challenger-class starship in service in the 2360s decade. (TNG - Annual comic: "Thin Ice")