Ex Astris Scientia
  Home  Info  Starships  Fleet Yards  Treknology  Episodes  Database  Fandom  Community    Classical Music   FAQ   Site Map 
 

Starfleet Ship Classes A-K

Starfleet A-K - Starfleet L-Z - Uncertain Starfleet Class - Unknown Starfleet Class

 

Known prefixes
NCC: Starfleet, active service
NX: Starfleet, experimental


Akira
General description
The Akira class is a relatively large type of starship with heavy armament. The warp pylons are swept downward and are affixed at their upper ends to two catamaran-like secondary hulls which run into the top of the saucer section. A weapons module is located at the top between the two secondary hulls. The Akira has two shuttlebay doors at the rear and one central door at the front end of the saucer.
Article: Size of the Akira class
Gallery: First Contact Ships
Known ships
USS Akira NCC-62497
(Name unknown) NCC-63646
USS Rabin NCC-63293
USS Spector NCC-63898
USS Thunderchild NCC-63549
  Annotations
1) The Akira class was designed by Alex Jaeger of ILM for "First Contact" and exists only as a CGI model. The size of the ship is discussed on a separate page.
2) There is confusion about the Akira registries. The named ships in the above list appear in the Star Trek Fact Files where the registry of the USS Thunderchild diagram is NCC-65549 instead of NCC-63549, while the latter number is assigned to the USS Spector. This is also the case on the ILM size chart, where the information for the Fact Files seems to come from, although here the Thunderchild is NCC-63898. The diagrams in Star Trek: The Magazine are directly derived from the Akira CGI. They confirm the NCC-63549 for the USS Thunderchild on the hull. I have decided to ignore the NCC-65549 from the Fact Files, and assign the NCC-63898 to the Spector.
3) I won't make up an in-universe reason for the striking similarities between the NX class and the 200 years younger Akira class. It's just annoying that no effort was made to design a truly original lead ship for Enterprise.
4) The Akira class has never been shown in its suspected role as a carrier, and fighters of the presumed Peregrine class probably wouldn't fit through the doors. The ship is also supposed to have 15 torpedo launchers, as stated by Alex Jaeger in Star Trek: The Magazine. Since these would be many more than on any other Federation ship and is not supported by visual evidence anyway, I assume that the ship has a more reasonable number of launchers.
Class specifications
Heavy cruiser
Length: approx. 440m
First commissioned in 2365

 


Ambassador
 

Zhukov variant
General description
The Ambassador class is a bulky starship type equipped for scientific missions as well as for combat. The class appears to be an intermediate design between the Excelsior and Galaxy classes. First launched in the early 24th century, the Ambassador is now among the aging ship designs.
Article: Ambassador Class Variants
Ambassador Gallery
Known ships
USS Adelphi NCC-26849
USS Ambassador NCC-10521
USS Enterprise NCC-1701-C
USS Excalibur NCC-26517
USS Exeter NCC-26531
USS Gandhi NCC-26632
USS Horatio NCC-10532
USS Valdemar NCC-26198
USS Yamaguchi NCC-26510
USS Zhukov NCC-26136
  Annotations
1) The Ambassador design is based on an early TNG concept by Andrew Probert. It was then built by Greg Jein with considerable simplifications as the Enterprise-C for TNG: "Yesterday's Enterprise". Comparing the studio models of the Enterprise-C and its later incarnations as Zhukov and Yamaguchi, we find two sub-classes with several changes that are shown in detail on my Ambassador class variants page. A final variant had shortened nacelle pylons, but was probably never visible on screen.
2) In the original concept Andrew Probert laid out his Galaxy predecessor to be 1721ft long, equaling 524m. The plans Rick Sternbach made for the Ambassador model to be built by Jein, however, assume a length of merely 478m, although the scale not explicitly indicated. Jein's 4ft (exactly 41'') studio model was subsequently reported to be 526m long, which may be either based on the assumption that this model is the same scale as the 48'' Enterprise-D, or it takes into account Probert's original size chart. The deck structure with somewhere between 32 and 38 decks would allow any size around 500m. I will stick to the established 526m until further notice and until I know the exact relative proportions of the vessel that have a decisive influence on my length estimation. 
3) Ambassador-class ships never showed up after the fifth season of TNG. It seems dubious that this newer ship class would be entirely retired within only a few years, while much older designs like the Excelsior and Miranda stay in service. My personal interpretation is that there are rather few ships of the Ambassador class altogether - although this may indeed have been a reason to retire them for economic reasons.
4) The hull labels of the Zhukov as visible in TNG: "Data's Day" read "USS Zuhkov (sic!) NCC-62136". The high NCC-62136 registry is an oddity for an old ship class. Since there is hardly any way that the spelling of the name could be "Zuhkov", I have decided that the number is wrong likewise and should be NCC-26136. The registry was accordingly corrected on an Okudagram around TNG's season 4.
5) In the deployment status display in TNG: "The Measure of a Man" we can barely make out an Excalibur NCC-21534. This registry is overruled by the ship from "Redemption II".
Class specifications
Heavy cruiser
Length: 526m (Enterprise-C), approx. 526m (Zhukov)

 


Andromeda
General description
The Andromeda class is a recent starship design. Ships of this class are in production as of the 2360's.
Known ships
USS Drake NCC-70956
USS Prokofiev NCC-68814
  Annotations
1) No ship of this class was ever visible. The class name Andromeda is from the Star Trek Encyclopedia.
2) Probably the Andromeda-class Drake was commissioned just after the Wambundu-class Drake had been destroyed by the automatic defense system (TNG: "Arsenal of Freedom") in 2364. Given that the registry perfectly corresponds with this date, this is one more sign that ships are chronologically numbered.
Class specifications
None available

 


Antares
General description
The Antares is an older class of ships based on the Miranda class.
Article: The Antares Class(es)
Known ships
USS Antares NCC-9844
USS Hermes NCC-10376
  Annotations
1) The USS Hermes NCC-10376, Antares class, appeared on displays in TNG. It is highly unlikely that this Starfleet Antares class is the same as the numerous civilian/alien designs of the same name, since Starfleet wouldn't share their technology with possible threat forces. And if the design were as obsolete as the various alien freighters in 2368, the Hermes would be inadequate for Starfleet.
2) Adam Buckner built a Miranda-class variant with a triangular pod instead of the rollbar for DS9, which he labeled "USS Antares NCC-9844" and of which four ships showed up in DS9: "Favor the Bold". While there is no definite evidence that this is the class ship of the Antares class (and it probably wasn't meant that way), it is a very good suggestion to bring order to the Antares chaos.
3) The Star Trek Encyclopedia says that the USS Antares NCC-501 (TOS: "Charlie X") could be the class ship of the civilian/alien Antares class - a suggestion which is both doubtful and outdated. There is nothing that would link the TOS ship to the USS Hermes, so the USS Antares from TOS (below) causes the least trouble if it is of any other class.
4) Jeri Taylor's novels were (allegedly) considered canonical, but
Chakotay's raider is no candidate for the Antares-class design any longer, although it was mentioned in the novel Pathways.
Class specifications
Length: 243m

 


Antares type
General description
The Antares is a cargo vessel that is considerably smaller than a Constitution-class starship.
Article: The Antares Class(es)
Article: Starships in TOS and TOS Remastered
Known ships
USS Antares NCC-501
USS Yorkshire NCC-330
Annotations
1) The USS Antares is the ship that was destroyed by young Charlie in TOS: "Charlie X". Her crew was wearing Starfleet uniforms, so it was always clear that the Antares belonged to Starfleet. The registry NCC-501 was made up by Mike Okuda, however, and was disputable until TOS-R. While the civilian Antares class and the above Starfleet Antares class, if they both exist, should be two distinct designs, there is no reason why the individual ship USS Antares should be the class ship of either of them.
2) The previously unseen Antares was finally shown in the remastered version of the TOS episode of 2007. Its design was laid out to be reminiscent of the freighter Woden according to startrek.com. However, it is evidently derived from the TAS cargo drone.
3) Another vessel of the same class briefly appears in orbit around Starbase 11, behind the Enterprise and the Intrepid, in TOS-R: "Court-Martial". Mike Okuda tells us that it is the Yorkshire NCC-330: "We're using the red script names (similar to the original shuttles) on the sides of these ships, with no 'USS' prefix, so it's ambiguous as to whether these are Starfleet or merely of Federation registry."
Class specifications
Cargo vessel

 


Apollo
General description
The Apollo class is a starship design from the beginning of the 24th century, according to the known registries.
Known ships
USS Agamemnon NCC-11638
USS Ajax NCC-11574
USS Clement NCC-12537
USS Gage NCC-11672
  Annotations
1) The Vulcan ship T'Pau NSP-17938 from TNG: "Unification" is listed as Apollo class in the Star Trek Encyclopedia II, but the class is neither confirmed in the Star Trek Fact Files T'Pau issue nor anywhere else. Considering the T'Pau does not look like a Starfleet ship at all, the Apollo class is arguably a still unknown design.
2) The Apollo-class USS Gage is the only unidentified among the six ships from DS9: "Emissary". I'm inclined to say that there is probably no model of it, and the name is only mentioned in a previous version of the script.
Class specifications
None available

 


Bradbury
General description
The NX number of the Bradbury indicates that it is an experimental ship or a class lead ship. The ship may have been commissioned around 2366.
Known ships
USS Bradbury NX-72307
  Annotations
No ship of this class was ever visible. 
Class specifications
None available

 


Centaur type
General description
The classification of the USS Centaur is unknown. The ship is mainly a rearrangement of Excelsior-class components and was possibly introduced in the early 24th century. It has a weapons or deflector pod similar to the
Miranda (but larger) at the bottom of the saucer between the warp engines.
Article: The DS9TM Kitbashes
Gallery: Various Starfleet Ships
Known ships
USS Centaur NCC-42043
  Annotations
1) The USS Centaur appeared in the DS9 episode "A Time to Stand" and barely visible in "Behind the Lines". In the somewhat inaccurate official schematic, as depicted in the DS9 Technical Manual, the weapons pod is missing, and the warp grille is too wide. I have retouched the image to match the studio model much better. Among numerous details, I have also included the shuttlebay which is in front of the bridge, facing the opposite direction, while the bridge itself is taken from a Miranda or Constitution model. The nacelles are two bottom halves of Excelsior nacelles glued together, the former bottom now facing outward and inward.
2) The ship was built by Adam Buckner and was really intended to be that small. Read more.
3) The registry is clearly readable on the hull of the model and is confirmed as the Centaur's number in the Star Trek Fact Files. Although the name Centaur was mentioned on screen, the model actually bears a different name which is printed on it in very small letters.
Class specifications
Length: approx. 210m

 


Challenger
General description
The Challenger class is obviously a newer ship design. It combines an almond-shaped saucer similar to that of the Galaxy with two nacelles above and beneath the small engineering hull.
Article: Challenger Class Reconstruction
Known ships
USS Armstrong NCC-57537
USS Buran NCC-57580
USS Kearsarge NCC-57566
  Annotations
The Challenger was built by Ed Miarecki and appeared only in TNG: "Best of Both Worlds". Mike Okuda's latest description of the Challenger perfectly complies with a photo of a studio model utilized for Wolf 359. Although the previous surmise of the Challenger being a Constitution/Constellation kitbash has been ultimately refuted, accordingly made up depictions are still floating around and they even crop up in newly set up fan databases. Trust me, they are all wrong.
Class specifications
Length: approx. 390m

 


Cheyenne
General description
The Cheyenne class is one of the few ship designs with four warp nacelles. The saucer hull is elliptical, but smaller than that of the Galaxy class.
Article: Cheyenne Class Reconstruction
Gallery: Various Starfleet Ships
Known ships
USS Ahwahnee NCC-71620/NCC-73620
  Annotations
1) The Cheyenne class (built by Ed Miarecki) is a kitbashed design. The saucer bottom from the small AMT/Ertl Enterprise-D kit including the neck is used as saucer top, and many windows and lifeboats have been either removed or extended to suggest a smaller ship. The bridge module is comparatively large and is obviously taken from the large 1/1400 Enterprise-D. The warp nacelles are actually highlighters! Read everything about my
Cheyenne class reconstruction on a separate page.
2) The USS Ahwahnee NCC-73260 was one of the ships destroyed at Wolf 359, but could not be definitely identified in the graveyard scene, let alone its registry. Anyhow, a
studio model with the above number is depicted in the Behind the Scenes Card Game. There is a second Ahwahnee NCC-71620 that served in the tachyon web fleet in TNG: "Redemption II". It is not evident whether this is the same ship, salvaged after Wolf 359, or another ship that has been named in honor of the first one - for some bizarre reason with a similar yet lower registry.
Class specifications
Length: 362m

 


Chimera
General description
Nothing is known about this class which seems to be a newer design.
Known ships
USS Portland NCC-57418
  Annotations
No ship of this class was ever visible. The class name Chimera is from the Star Trek Encyclopedia.
Class specifications
None available

 


Constellation
General description
The Constellation class is a starship type with four warp nacelles that was first commissioned around 2280. Warp nacelles and several components of the saucer section are essentially identical to the Constitution and
Miranda classes. Constellation-class ships are outdated. Most of them seem to have been decommissioned prior to 2370.
Gallery: Various Starfleet Ships
Known ships
USS Constellation NCC-1974
USS Gettysburg NCC-3890
USS Hathaway NCC-2593
USS Magellan NCC-3069
USS Stargazer NCC-2893
USS Valkyrie NCC-2590
USS Victory NCC-9754
USS Gihlan NCC-9761
(Name unknown) NCC-7100
  Annotations
1) Andrew Probert and Rick Sternbach built the yellow model labeled NCC-7100 in Picard's office using two ERTL Enterprise(-A) kits and several parts from anime kits, most notably the VF-1 Valkyrie from Macross. This miniature of the Constellation class first appeared in TNG: "Encounter at Farpoint" and was intended to represent the Stargazer indeed. The real-world reason for the number "NCC-7100" is that it may be easily created from the numerals "NCC-1701" in the ERTL kit.
2) Greg Jein later reconstructed the look of the desktop model for a 4ft Stargazer studio miniature, using parts built from scratch and from a larger scale Macross kit.
3) Regardless of the existing NCC-7100, the USS Stargazer in TNG: "The Battle" was initially intended to be a Constitution-class vessel. But it was then deemed easier to build a larger version of the model seen in Picard's ready room than to prepare and shoot the complex Constitution miniature. The class name was chosen so that in the already finished scene Geordi's mention of "Constitution", that for some reason made it into the final dialogue, could simply be dubbed with "Constellation".
4) Unlike the inaccurate drawing in the Star Trek Encyclopedias I and II the Constellation image shown here (scanned from the Star Trek Fact Files) takes into account the fact that the warp engines are nearly the same as of the Constitution and Miranda classes, slightly modified at their rear ends, but unquestionably not of a smaller type. Consequently, the Constellation has to be much longer than specified in the Encyclopedia. This is also consistent with the studio model, recently lettered as USS Valkyrie, which was shown in various Star Trek exhibitions across Europe and with a drawing that Rick Sternbach made himself.
5) The USS Gihlan is not strictly canonical, but from an article by Rick Sternbach in Star Trek: The Magazine. With the precedence of ships and registries only mentioned in his TNG Technical Manual (and high esteem of Rick's work), I am including this ship to the list. The specs are from this article too.
Class specifications
Length: 310m
Deck count: 15
Crew complement: 535
First commissioned in 2284

 


Constitution


Pilot version


Constitution (refit)
General description
The Constitution class was introduced around 2240. At that time the Constitution class was the fastest and most powerful ship type of the fleet and the only one officially designated as a "Starship". 12 ships of this class were in service by the year 2267. Starting with the USS Enterprise in 2271, a number of Constitution-class ships have undergone a complete reconstruction that included new warp nacelles, modification of the engineering hull and "neck", enlargement of the saucer section and a new bridge module. The ships may have been decommissioned at the end of the 23rd century, one of them is displayed in the Starfleet Museum.
Article: Starships in TOS and TOS Remastered
Article: The Enterprise Refit of 2271
Article: Wolf 359 - Other Ships
Constitution Gallery
Known ships
USS Constitution NCC-1700
USS Constellation NCC-1017
USS Defiant NCC-1764
USS Eagle NCC-956 (refit)
USS Endeavour NCC-1895
USS Enterprise NCC-1701 (refit 2271)
USS Essex NCC-1697
USS Excalibur NCC-1664
USS Exeter NCC-1672
USS Farragut NCC-1647
USS Hood NCC-1703
USS Intrepid NCC-1631
USS Kongo NCC-1710
USS Lexington NCC-1709
USS Potemkin NCC-1657
USS Republic NCC-1371
USS Yorktown NCC-1717
(Name unknown) NCC-1707



Annotations
1) The Constitution-class starship was designed by Matt Jefferies. Its original version lacks any discernable thrusters or docking ports although we can take for granted the ship has them too. There were several slight modifications to the Enterprise filming miniature after the first pilot and again after the second pilot. Most notably, the model originally had a somewhat taller bridge dome. The nacelle end caps changed from a flat surface in "The Cage" over a hole pattern in "Where No Man Has Gone Before" to the most familiar "white ball" in the series version. These modifications may be taken as hints that the ship was slightly refitted a couple of times even before 2270.
2) A new model of the Constitution was built by Greg Jein for DS9: "Trials and Tribble-ations", and a CGI model for ENT: "In a Mirror, Darkly". Both of them faithfully reconstruct the look of the old TOS Enterprise and Defiant, respectively, in the series version. In the latter episode we see that the double beam of the aft phaser array fires from either side of the dome above the hangar deck of the Defiant, and aft torpedoes are available too. Moreover, the port, starboard and aft thrusters of the ship are mentioned.
3) The Constitution refit was designed by Andrew Probert, based on a preliminary concept model by Matt Jefferies. The Enterprise and Enterprise-A are the only reconstructed Constitution-class ships that were shown. Gene Roddenberry proposed that the latter was first designated as USS Yorktown and later recommissioned as Enterprise 1701-A, which is just an offhand mention and not really canonical. It is a reasonable assumption that most of the remaining ships were refurbished likewise in the 2270s.
4) Although the actual number of Constitution starships is at least 18, Kirk's statement that there are 12 of them as of 2267 (TOS: "Tomorrow is Yesterday") can be maintained taking into account that some of them (namely Constellation, Defiant, Excalibur, Intrepid) were lost, while more ships might have been commissioned in the 2260's.
5) The "Starship Class" plaque of the original Enterprise and a note in The Making of Star Trek suggest that "starship" was no generic term at that time, but was specifically used for ships akin to the Enterprise. The tradition to name a ship class for the prototype ship might have been established later, although this is questionable considering that Star Trek Enterprise has been using letter-style as well as "real" class names.
6) A sign in "Star Trek II" unmistakably says "Mark IV Simulator - Enterprise Class". The (sub-) class name "Enterprise class" makes sense, considering that the refit has hardly anything in common with the original Constitution.
7) The engineering hull at Wolf 359, which definitely stems from a Constitution refit, suggests that these ships may have been still in service or at least acted as reserve ships in 2366. The issue is also discussed here.
8) Some of the names and registries never appeared on screen together. Many of the registries were listed on a wall chart on Starbase 11 in TOS: "Court-Martial", but without names. Names from the episodes and from The Making of Star Trek were correlated with the registries by Greg Jein for the first Encyclopedia, but strictly speaking they are conjecture. The USS Eagle NCC-956 is from Col. West's flip chart in "Star Trek VI" and was only identified as Constitution class in the Encyclopedia. The NCC-1707 is from a spacedock status chart from "Star Trek III".
9) Like the 3D model from ENT: "In a Mirror, Darkly", the CGI used in TOS Remastered is an authentic reproduction of the original Enterprise miniature. It is noteworthy that the color of the phaser beams, which used to be sometimes blue and sometimes red in TOS, was redone to be consistently blue. The Constellation, which looked somewhat different in TOS: "The Doomsday Machine" due to its nature as a coarse polystyrene model, is a standard Constitution in the remastered episode, not a slightly different ship type as some fans used to conjecture. In TOS-R: "Court-Martial" we can see damage on the Enterprise's starboard hull beneath the hangar deck. This is where the ion pod is located (that Kirk allegedly ejected with Finney still inside).
10) Also in TOS-R: "Court-Martial", we can see the Intrepid for the first time, with the registry NCC-1631. Although it would not have been mandatory, this registry cannot be found on the wall chart in Stone's office that lists an "NCC-1831". But the latter could be any other ship, also taking into consideration that the bar shows 100% completion, whereas Stone verbally states that work on the Intrepid would be postponed in favor of the Enterprise.
Class specifications
Heavy cruiser
Length: 289m (original), 305m (refit)
Deck count: 21
Max. speed: Warp 6 (cruise, old scale)
Crew complement: 430 (around 2266)

 


Curry type
General description
Virtually nothing is known about this ship which is composed of Excelsior-class components and Constitution-class warp nacelles.

Article: The DS9TM Kitbashes
Known ships
USS Curry NCC-42254
  Annotations
1) This odd ship could be seen at the beginning of DS9: "A Time to Stand", named USS Curry NCC-42254 (for Dan Curry, DS9 VFX staff). Its class is unknown, the fandom nickname is "Shelley" class (for Mary Shelley, author of Frankenstein) - an obvious choice. The name and registry information comes from the Art Department. The model seems to have been built by Dan Curry himself.
2) There exist photos of a kitbash model showing a somewhat different configuration labeled as "Raging Queen NCC-42284". This ship is also depicted in the
DS9 Technical Manual, where official photos or drawings of the Curry configuration are missing. There are most likely two distinct models.
3) In
my schematic I have tried to replicate the actual look of the Curry. The model is obviously created from an Excelsior and a (larger scale) Constitution kit, so the nacelles are almost bigger than the whole rest of the ship, which looks incredibly silly. I deliberately decreased the Constitution nacelles to the correct size relative to an Excelsior. Otherwise it would look like this monster.
4) Please ask Dan Curry what the ship's strange structure could be useful for. My best guess: It looks like the saucer and warp nacelles form a fully operational starship, whereas the bottom hull possibly serves as a large cargo- or shuttlebay and is supposed to be abandoned in emergency situations.
5) The previously reported registry NCC-45617 is not correct. NCC-42254 has been confirmed by Curry.
Class specifications
Length: approx. 272m

 


Daedalus
General description
The Daedalus class was a commonly used design in the early days of Starfleet in the mid-22nd century. Unlike most later starships, the Daedalus had a spherical main hull. The last ships of this class were taken out of service by the year 2196.
Article: Daedalus Class Problems
Gallery: Various Starfleet Ships
Known ships
USS Archon NCC-189
USS Essex NCC-173
USS Horizon NCC-176
  Annotations
1) A model labeled as USS Horizon, which could have been the vessel mentioned in TOS: "A Piece of the Action", was built by Greg Jein and can be seen in Sisko's ready room. It is based on an early design for the original USS Enterprise by Matt Jefferies, which is depicted in The Art of Star Trek. Although we have never seen a close-up that would allow us to identify it as Daedalus class, I think the design qualifies as authentic and 100% canon.
2) The length is just 105m in the Star Trek Encyclopedia I, but the ship would be very small for a crew of 229.
3) The Essex is confirmed to be a Daedalus-class ship (TNG: "Power Play"). The Archon, on the other hand, was mentioned in TOS: "Return of the Archons", but was not meant to be a specific class and had no registry assigned until the Encyclopedia I.
4) Since the Daedalus class was retired before 2196, it is unlikely that the USS Carolina (TOS: "Friday's Child") belongs to this class, although this is stated in the Star Trek Encyclopedia II.
Class specifications
Length: 140m
Crew complement: 229
Decommissioned in 2196

 


Danube


Danube with rollbar
General description
Runabouts are small starships for personnel transport over longer distances than a shuttlecraft. The Danube Class runabouts are equipped with an interchangeable mission module and an optional photon torpedo module at the top of the spacecraft. The ships, which have been introduced in 2368, are usually named after rivers on the planet Earth.
Gallery: Other Small Federation Vessels
Known ships
USS Danube NCC-72003
USS Gander
USS Ganges NCC-72454
USS Mekong NCC-72617
USS Orinoco NCC-72905
USS Rio Grande NCC-72452
USS Rubicon NCC-72936
USS Shenandoah NCC-73024
USS Volga NCC-73196
USS Yangtzee Kiang NCC-72453
USS Yukon NCC-74602
(Name unknown) NCC-73918
Annotations
1) The runabout was designed by Rick Sternbach and Jim Martin for DS9. Though probably not more than three runabouts are assigned to Deep Space Nine at a time, at least ten of them were lost. Most of the ship names have not even been mentioned.
2) The speed of Warp 4.7 is taken from the DS9 Writer's Bible. As with the shuttles too, there is the problem that the runabout would need months for a distance that starships could bridge in a few days. Traveling from DS9 to Earth in a runabout, as shown several times, would be very impractical, even though the distance is only about 50ly. At least one on-screen reference supports the maximum speed of Warp 4.7, though. In DS9: "Dax", Kira searches for ships that could outrun a runabout, and specifically mentions a lower limit of Warp 5.
3) Runabouts may be modified with an additional torpedo pod (DS9: "The Maquis", "The Jem'Hadar").
Class specifications
Runabout
Length: 23m
Max. speed: Warp 4.7
First commissioned in 2368

 


Defiant
General description
Unlike other Starfleet ships, the Defiant class is primarily designed for combat. It was developed in order to fight the Borg. Besides conventional weapons the ship has pulse phaser cannons and quantum torpedo launchers. While further ships of this class have been built in the meantime, the USS Defiant probably remained the only one with a Romulan cloaking device and was still in experimental status at the time of its destruction.
Article: Defiant Problems

Defiant Gallery
Known ships
USS Defiant NX-74205
USS Valiant NCC-74210
USS São Paulo NCC-75633
>> USS Defiant NX-74205
Annotations
1) Starfleet's first warship was designed by Jim Martin and Gary Hutzel and first appeared in DS9: "The Search". It can be surmised that the Dominion threat was the incentive to continue production of the Defiant class, although the prototype ship does not meet Starfleet standards.
2) Most visual evidence points to a length of 120m. Read here.
3) The Defiant has a landing gear, but it has never been shown. The real-world reason for that is that the producers were not aware that there were landing struts visible in the MSD. Ron D. Moore said in an interview with LCARScom.net: "The Defiant has landing gear? You have to remember that things like CD-ROMs and the various "official" manuals put out by Paramount are not done in conjunction with the writing/producing staffs and that the authors are usually simply extrapolating information based on what's actually been seen on screen." In a fictional sense it may be debatable if the ship is capable of atmospheric flight and landing on planets, since this would have been an option in a few episodes, so why was it never considered? Still, it seems possible that the fairly small Defiant was designed to use the shuttlebays in starbases.
4) The USS São Paulo was renamed in honor of the destroyed Defiant (DS9: "The Dogs of War") and should have kept the registry NCC-75633. Unfortunately the ship was only seen as NX-74205 in "What You Leave Behind". Aside from the extensive stock footage, all new takes showed NX-74205 too.
5) There were two Defiant-class ships in VOY: "Message in a Bottle". Fortunately we couldn't have a closer look because they were both labeled "USS Defiant NX-74205".
Class specifications
Escort
Length: approx. 120m
Deck count: 4
Max. speed: Warp 9
Crew complement: 47
First commissioned in 2370

 


Deneva
General description
The Deneva-class design is in use since the very beginning of the 24th century. The ships have a relatively small crew complement.
Known ships
USS Arcos NCC-6237
USS LaSalle NCC-6203
  Annotations
The class name Deneva is from the Star Trek Encyclopedia. The explosion of the USS Arcos could be seen in TNG: "Legacy", but we can only recognize in the remastered version that it is the same as the Sanction and the Erstwhile. It looks like the ship type is so old that Starfleet would sell surplus ships to non-aligned aliens.
Class specifications
Freighter

 


Excelsior


Excelsior prototype


Excelsior (refit)
General description
The Excelsior NX-2000 was originally equipped with an experimental transwarp drive. A large number of Excelsior-class starships was built over a period of more than 60 years. Excelsior-class ships incorporate two shuttlebays in the engineering hull stern and keel. The Excelsior design is still in use as of the year 2376.
Article: Size of the Excelsior Class
Article: Wolf 359 - Other Ships
Excelsior Gallery
Known ships
USS Al-Batani NCC-42995
USS Berlin NCC-14232
USS Cairo NCC-42136
USS Charleston NCC-42285
USS Crazy Horse NCC-50446
USS Crockett NCC-38955
USS Enterprise NCC-1701-B (refit)
USS Excelsior NX-2000/NCC-2000
USS Fearless NCC-14598
USS Frederickson NCC-42111
USS Gorkon NCC-40521
USS Grissom NCC-42857
USS Hood NCC-42296
USS Intrepid NCC-38907
USS Lakota NCC-42768 (refit)
USS Lexington NCC-30405
USS Livingston NCC-34099
USS Malinche NCC-38997
USS Melbourne NCC-62043
USS Okinawa NCC-13958
USS Potemkin NCC-18253
USS Repulse NCC-2544
USS Roosevelt NCC-2573
USS Tecumseh NCC-14934
USS Valley Forge NCC-43305
  Annotations
1) The Excelsior was designed by Bill George of ILM for "Star Trek III"; the refit was conceived by John Eaves for "Star Trek Generations". There are only two known refitted Excelsior-class ships, the Enterprise-B and the Lakota (see also
starship class inconsistencies).
2) There is yet another class variant. The original Excelsior was modified from its first appearance as NX-2000 in "Star Trek III" to the NCC-2000 "Star Trek VI". The NCC-2000 has a smaller bridge module, two small impulse deflection crystals instead of one large, and a new, angular section with three decks sticking out forward from the aft shuttlebay, instead of a round hull part with probably two decks. The Enterprise-B and Lakota are based on this NCC-2000 refit.
3) The ILM size chart by Nilo Rodis for "Star Trek III" has the Excelsior at 1,531ft = 467m. Although the ship does appear larger in some shots (especially in early TNG compared to the Galaxy), this is the generally accepted size. Only the DS9TM claims that the ship is larger (511.25m). This calculation error is by no means intentional though. Read more about the size of the Excelsior.
4) There is no clear-cut evidence that the transwarp experiment really failed - only the TNGTM says so. Read more thoughts about this issue here.
5) The registry of the USS Melbourne is NCC-62043, since at the time
TNG: "Best of Both Worlds" was produced it was supposed to be a Nebula-class ship. In the battle scene of DS9: "The Emissary", this number can briefly be seen on the saucer hull before it is blown up, although it seems to be way too high for the aged Excelsior-class design.
6) According to the Encyclopedia, the Lexington is an Excelsior-class ship and has the registry NCC-14427. At least the latter is overruled by the registry NCC-30405 (barely) visible in "The Measure of a Man".
Class specifications
Heavy cruiser
Length: 467m (original), 469m (refit)
First commissioned in 2284

 


Excelsior study I
General description
Nothing is known about this starship class whose construction seems to date back to the beginning of the 24th century or earlier. 

Article: Wolf 359 - Other Ships
Article: Analysis of the Qualor II Surplus Depot
Known ships
(Name unknown) NCC-1404
  Annotations
1) This is one of five study models for the Excelsior, built in the course of the pre-production of "Star Trek III". The model briefly appeared on screen in TNG: "Unification" and possibly in "Best of Both Worlds" too. The real starship most likely isn't related to the Excelsior class. It is named "Excelsior study" in this list only due to the lack of a proper name.
2) The studio miniature is labeled "USS Alka-Selsior NCC-1404". We may agree with the registry, but would want to forget the name.
Class specifications
None available

 


Excelsior 4-nacelled study I
General description
Nothing is known about this starship class whose construction seems to date back to the beginning of the 24th century or earlier.

Article: Wolf 359 - Other Ships
Article: Analysis of the Qualor II Surplus Depot
Known ships
No name or registry given
  Annotations
1) This is one of five study models for the Excelsior, built in the course of the pre-production of "Star Trek III". The model briefly appeared on screen in TNG: "Best of Both Worlds" and "Unification". The real starship probably isn't related to the Excelsior class. It is named "Excelsior study" in this list only due to the lack of a proper name.
2) The model has a saucer resembling a Constitution refit and four nacelles which are connected by what looks like an extendable neck. The nacelle pylons appear to be retractable too. Since this would make no sense technically, it is a better suggestion that, unlike it was the original intention, this may be a cargo ship, and containers can be mounted to the underside of the connecting spine.
Class specifications
None available

 


Excelsior 4-nacelled
study II
General description
Nothing is known about this starship class whose construction seems to date back to the beginning of the 24th century or earlier. 

Article: Wolf 359 - Other Ships
Article: Analysis of the Qualor II Surplus Depot
Known ships
No name or registry given
  Annotations
The existence of this study model was revealed only lately in Star Trek: The Magazine. The article suggests that this one could be the earliest version, as it closely resembles the sketches that called for a four-nacelled ship (that looks like it has more power than the Enterprise). It is very likely that the miniature was used in TNG: "Unification", whereas an appearance in "Best of Both Worlds" cannot be confirmed.
Class specifications
None available

 


Freedom
General description
The Freedom class is a newer starship design, incorporating an ellipsoid hull and one Galaxy-type warp nacelle.

Article: Freedom Class Reconstruction
Known ships
USS Concorde NCC-68711
USS Firebrand NCC-68723
  Annotations
1) The "Frying-pan" class by Greg Jein is the only strictly canon ship with a single warp nacelle known by now. The Firebrand was among the ships in the Wolf 359 graveyard, and is depicted in the Star Trek Fact Files.
2) It has been argued that the ship wouldn't violate Roddenberry design rule #2 (nacelles must be in pairs) because the Galaxy-class nacelle has warp coils in pairs. But since the coils are vertically staggered inside the nacelle, they would act more like a single coil than if one were beside the other. Thus, if the usually paired warp engines are co-dependent across the ship's symmetry axis, it is a very inefficient arrangement.
3) It is uncertain whether it is the "Concord" (after the capital of New Hampshire) or the "Concorde" (the French spelling and also the name of the supersonic passenger plane). It is listed here as "Concorde" because of my European solidarity.
Class specifications
Length: 430m

 


Galaxy
 

Venture variant
General description
The Galaxy class is the result of an ambitious development program at Utopia Planitia Fleet Yards. It is the largest and most complex Starfleet starship built to date. The Galaxy class is primarily designed to replace the aged Ambassador and Oberth classes in research missions. Galaxy-class starships feature a detachable and independently operational saucer section, three shuttlebays and a captain's yacht at the bottom of the saucer.
Article: The Saucer Rim on the Galaxy Class

Galaxy Gallery
Known ships
USS Challenger NCC-71099
USS Enterprise NCC-1701-D
USS Galaxy NCC-70637
USS Magellan
USS Odyssey NCC-71832
USS Venture NCC-71854
USS Trinculo NCC-71867
USS Yamato NCC-71807
Annotations
1) The Galaxy was designed by Andrew Probert. The original design length of exactly 2000ft = 610m increased to 2108ft = 642.5m due to Roddenberry's wish to extend the nacelles to the aft.
2) As the region around the saucer rim was redesigned to fit in Ten Forward, the rim was heightened on the later 4ft studio model.
3) Apart from the three-nacelle version in TNG "All Good Things", the Venture from DS9: "Way of the Warrior" is a Galaxy variant with additional engine top pieces, probably phaser strips. The miniature of this variant may have been built using smaller scale nacelles which, unlike on the "All Good Things" variant, are seemingly facing rearward. Two Galaxy-class ships shown in DS9: "Favor the Bold" seem to have a darker neck, possibly constituting yet another variant. This may be a rendering error though.
4) The weapons of the Galaxy class are well-defined. There was one blatant error when the Enterprise fired a phaser from the forward torpedo launcher in TNG: "Darmok".
5) According to the STTNG Technical Manual, six Galaxy-class starships have been completed, and six additional spaceframes prepared. Actually, twelve Galaxy starships altogether are the minimum possible number, taking into account that at least three have already been destroyed, and several others are involved in the Dominion War.
6) The erroneous registry NCC-1305-E of the Yamato in TNG: "Where Silence Has Lease" can be simply explained by the fact that the ship was only an illusion created by Nagilum (Star Trek Fact Files). Actually, this was not intended, but the production designer was just not aware of the 24th century numbering scheme. The number was corrected by Mike Okuda some episodes later, when the Yamato exploded in TNG: "Contagion". However, while Picard's monitor states it is NCC-71807, the number visible in HD looks rather like NCC-71806. To further complicate things, a USS Yamato ist listed on the starship deployment status in TNG: "The Measure of a Man", only two episodes before Contagion, here apparently with the registry NCC-24383.
7) It is odd that the USS Challenger has a lower registry than the USS Yamato, although the Yamato was supposed to be one of the first three ships (after the Galaxy and before the Enterprise), at least according to the TNGTM.
Class specifications
Explorer
Length: 642m
Deck count: 42
Max. speed: Warp 9.2 (cruise)
Crew complement: 1014
First commissioned in 2357

 


Hokule'a
General description
The Hokule'a is an older class of starships. The USS Tripoli was in active service in 2338 and is now decommissioned.
Known ships
USS Tripoli NCC-19386
  Annotations
No ship of this class was ever visible. The class name Hokule'a is from the Star Trek Encyclopedia.
Class specifications
Heavy cruiser

 


Intrepid


Active hull armor
General description
First introduced around 2370, the Intrepid class is among the fastest starships of the fleet. It features bioneural computer components and a variable geometry warp field which is accomplished with folding warp pylons.
Article: Voyager Inconsistencies

Intrepid Gallery
Known ships
USS Intrepid NCC-74600
USS Bellerophon NCC-74705
USS Voyager NCC-74656
  Annotations
1) Whilst the ship's overall structure is unusually consistent (as Voyager is "Rick Sternbach's Pride" ;-)), there are several questions why the angle of the alleged variable warp geometry nacelles is always the same at warp, why the only shuttlebay is called "shuttlebay two" and, last but not least, where all those shuttles come from. Also, some special effects shots are flawed, like the ship firing phasers from the nacelles in VOY: "Unimatrix Zero".
2) The Intrepid class has an auxiliary craft, the aeroshuttle, docked to the saucer bottom. We may make up several explanations why it never showed up in Voyager. In a Star Trek: The Magazine article, Rick Sternbach suggests that the aeroshuttle may not yet have been installed when Voyager departed for the Badlands.
3) Rick Sternbach once said that the Intrepid's registry is NCC-74600. This is finally made official on a tactical display in "Star Trek Nemesis" (made by Sternbach himself).
4) In VOY: "Endgame" the ship is equipped with ablative hull armor that Admiral Janeway brings from the future. It is unknown whether this may become standard issue.
Class specifications
Length: 344m
Deck count: 15
Max. speed: Warp 9.975
Crew complement: 141

 


Istanbul
General description
The Istanbul class seems to be a large type of transport ship suitable to carry settlers and their equipment. The known ships are named for cities on Earth.
Known ships
USS Constantinople NCC-43622
USS Havana NCC-34043
USS Sarajevo NCC-38529
  Annotations
1) No ship of this class was ever visible. The class name Istanbul is from the Star Trek Encyclopedia. It is an oddity that there are two ships of the same class using different names of the same city. Maybe there is also a USS Byzantium. ;-)
2) The registry
NCC-43622 for the Constantinople comes from the deployment status chart in TNG: "The Measure of a Man", as opposed to the NCC-34852 as listed in the Encyclopedia.
Class specifications
Transport
Passenger capacity: 2000

 


Korolev
General description
The Korolev class appears to be a newer design, as indicated by the Goddard's registry.
Known ships
USS Goddard NCC-59621
  Annotations
No ship of this class was ever visible.
Class specifications
None available

 


Back to Starship Database index

  Share 
  Home   Top    View as gallery 
Last modified: 12.02.14  
http://www.ex-astris-scientia.org/schematics/starfleet_ships1.htm