For the VOY episode of the same name, please see "Prototype".

Prototype is the common designation for a first working model of a new invention, used for trial runs.

In 2371, the Obsidian Order tested a prototype quantum stasis field, which prevented a Changeling from altering its biomolecular structure. (DS9: "The Die is Cast")

In 2373, Starfleet Science developed a prototype of a device called a polaron emitter, designed to expose Changelings by rendering them unable to maintain solid form. The untested nature and the complicated means of placement and activation made Miles O'Brien remark: "I hate prototypes". (DS9: "Apocalypse Rising")

Concerning starships, Starfleet prototypes had an "NX" prefix in the registry number, as opposed to the normal "NCC" (this was different from the United Earth NX prefix, which indicated the NX class), and were typically the first vessels in their class.

Prototype ships Edit

Earth Edit

• Enterprise (OV-101) (20th century)
• Phoenix (2063)
• SS Conestoga (2069)

Starfleet Edit

22nd century Edit

• NX-Alpha
• NX-Beta
• NX-Delta
• Enterprise

23rd century Edit

• USS Constellation
• USS Excelsior ("The Great Experiment")
• USS Oberth

24th century Edit

• USS Bradbury
• USS Dauntless (actually an alien vessel in disguise)
• USS Defiant
• USS Galaxy
• USS Intrepid
• USS Nova
• USS Prometheus
• USS Sovereign
• USS Yellowstone (runabout; existed in an alternate timeline)
• Delta Flyer (shuttlecraft)

Klingon Defense ForceEdit

• Advanced Bird-of-Prey (2293)
• IKS Negh'Var (2370s)

Romulan militaryEdit

• Romulan drone-ship (2154)
• Scimitar (Reman) (2379)

Andorian Imperial GuardEdit

• Kumari (2140s)

Background informationEdit

• In production of Star Trek: The Original Series, Star Trek: Phase II, and Star Trek: The Motion Picture, several USS Enterprise prototypes were built.
• In production of Star Trek III: The Search for Spock, several USS Excelsior prototypes were built.
• In production of Star Trek: Voyager, a USS Voyager prototype mock-up model was built.