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Memory Beta, non-canon Star Trek Wiki

In an alternate timeline, SC-4 (registry SC-04[1]) was a 25th century[3] Federation auxiliary craft, a Type-18H[4] shuttlecraft in Starfleet service in the 2400s decade. In that time, it was assigned to Starfleet Command and stored at Oakland Shipyard.[2] (VOY episode & novelization: Endgame)

History and disposition[]

Alternate timeline[]

USS Rhode Island intercepts SC-4.

In an alternate timeline, SC-4 was assigned to Starfleet Command and was stored at Oakland Shipyard. It was requisitioned by Commander Reginald Barclay of Starfleet Academy to serve as the personal[5] shuttlecraft of Vice Admiral Kathryn Janeway in the 2400s decade. Ten years after USS Voyager returned to the Alpha Quadrant at the end of a 23-year odyssey from the Delta Quadrant, Admiral Janeway plotted to alter history, using SC-4 to bring Voyager home via a Borg transwarp hub.

In 2404, Janeway had B'Elanna Torres, Federation liaison to the Klingon High Council, gain favors for the Great House of Korath, son of Monak. (VOY episode & novelization: Endgame)

Korath was a duplicitous Klingon scientist, and the first person in local space to invent a reliable method of time travel. (DTI novel: Watching the Clock)

Janeway traveled to Korath's planet aboard the SC-4 to conclude the trade. Lieutenant Miral Paris was already there, to confirm the veracity of Korath's chrono-deflector on the admiral's behalf. Paris left after meeting Janeway, and Korath double-crossed the admiral. She captured the chrono deflector and transported back to the SC-4, where she had left the ablative generator active. Deploying the ablative armor, SC-4 became impervious to Korath's Voodieh-class warship firing on it.

SC-4 accelerated to warp 6 to evade the Klingons but was soon intercepted by the USS Rhode Island. Captain Harry Kim had learned of Janeway's plot to alter history. While the ships hovered in space side by side, the two discussed the admiral's plot, and Captain Kim was brought around.

The chrono deflector was installed atop the shuttle's cabin. SC-4 proceeded to the target coordinates but was encroached upon by a pair of Voodiehs. Unable to deploy armor, Janeway called Kim for help. The Rhode Island returned and engaged the Klingon ships. SC-4 opened a temporal rift to the Delta Quadrant, 2377 CE. SC-4 passed through, and the Admiral ordered the primary universe {{uSS|Voyager]], found on the other side, to close the rift. That prevented the Klingon warships from traversing the rift. The chrono deflector burned out after one-time use, leaving SC-4 in the 24th century for good. (VOY episode & novelization: Endgame)

24th century[]

On stardate 54973.4 in late 2377[2], SC-4 emerged from the temporal rift at the bow of Voyager. Vice Admiral Janeway explained the crew she was from the future and sought to alter the timeline. SC-4 and its databanks contained advanced anti-Borg technology, some of which was adapted to USS Voyager.

SC-4's ablative generator and transphasic torpedos were replicated for the much larger Intrepid-class starship, but the shuttle's stealth technology proved incompatible. Vice Admiral Janeway and Captain Kathryn Janeway hatched a plan to allow Voyager to escape to the Alpha Quadrant through a transwarp hub in the nearby Borg nebula. While Voyager escaped, the admiral took SC-4 to the Borg Unicomplex Unimatrix One to distract the Borg Queen. Janeway intended to sacrifice herself, and allowed the Borg to discover and assimilate herself and SC-4. The Borg assimilated the armor technology but were infected with a neurolytic pathogen that in short order led to the detonation of the unicomplex and the transwarp hub in the nebula. SC-4 was caught in the explosion of the unicomplex and destroyed.

Voyager returned successfully to Earth, having dealt a crippling blow to the Borg Collective. (VOY episode & novelization: Endgame)


Voyager returned to service in January 2378, after its futuristic technology had been removed under Project Full Circle. (VOY novel: The Farther Shore)

A replacement SC-4 entered service and was assigned to Starfleet Command. (SOTL calendar: Ships of the Line 2020, September image)



Starfleet Command auxiliary craft
Federation, Starfleet Dawkins (Type-9 shuttlecraft)SC-4 (24th century, Type-18H shuttlecraft)SC-4 (SC-04, Type-18H shuttlecraft) UFP emblem image. Starfleet emblem image.
United Earth, Starfleet NC-05 (OTV type K42 shuttlepod) United Earth emblem image. Earth Starfleet emblem image.
Type-9 shuttlecraft
Emblem of the United Federation of Planets. 65CochraneCookDawkinsJefferiesType-18H variant: SC-4 (24th century)SC-4 (25th century) Seal of the Federation Starfleet.


  1. 1.0 1.1 The Official Starships Collection Issue Shuttle 24: "Janeway's Armored Shuttle".
  2. 2.0 2.1 2.2 2.3 2.4 VOY episode & novelization: Endgame.
  3. VOY episode & novelization: Endgame.
  4. The Official Starships Collection Issue Shuttle 24: "Janeway's Armored Shuttle".
  5. The Official Starships Collection Issue Shuttle 24: "Janeway's Armored Shuttle".

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