D7 class

STARSHIP CLASS
D7-class

Affiliation:	Klingon Empire, Klingon Defense Force, Romulan Star Empire Klingon Alliance
Type:	Battle cruiser Scout ship
Service period:	2257–2370s
Dimensions
Length:	228 meters
Specifications
Crew:	430-438
Speed:	warp 9
Armaments:	2+ heavy disruptor cannons, 1+ photon torpedo launcher
Defences:	deflector shields
The IKS Gr'oth in 2267

The D7 class battlecruiser was a type of warship designed and built by the Klingon Empire during the mid 23rd century. Many also entered the service of the Romulan Star Empire following the formation of a Klingon-Romulan alliance in the 2260s. (TOS episodes: "Elaan of Troyius", "The Enterprise Incident", "Day of the Dove"; WizKids module: Attack Wing)

History[]

The D7-class was the next step in Klingon battlecruiser design, its form being a development of the earlier D4-class. The first prototypes entered service as early as 2151. (ENT episode: "Unexpected")

The Star Trek Adventures Roleplaying game Core Rulebook speculates that the D7 did not enter service until 2250.

The D7 was introduced in 2257 by Chancellor L'Rell as she presented the ships's schematics to the Klingon High Council. She hoped that the design would enter mass production and be a symbol of Klingon unity embraced by all Houses. (DSC episode: "Point of Light")

By the mid 23rd century the class had become the mainstay of the fleet. In the 2250s some D7s were used as prison ships. (Star Trek DIS episode: "Choose Your Pain")

Following the Federation-Klingon War of 2256-2257 a new D7 variant was designed. Instead of bearing the banner of any one Klingon House, the new cruisers were intended to bear the mark of the unified Klingon Empire, and become the mainstay of the fleet following the war. (DSC episode: "Point of Light")

After a red burst was observed over Boreth, Chancellor L'Rell traveled to that world on one of the first new D7s of that varient to meet with Captain Christopher Pike on the USS Discovery. (DSC episode: "Through the Valley of Shadows")

Several of these ships later fought the Section 31 armada in support of Discovery and USS Enterprise. (DIS episodes: "Through the Valley of Shadows", "Such Sweet Sorrow, Part 2")

Following the formation of a Klingon-Romulan alliance in the 2260s, many D7s entered service in the Romulan Star Empire as Stormbird-class cruisers. (TOS episode: "The Enterprise Incident," FASA RPG module: The Romulans: Star Fleet Intelligence Manual)

A variant of this cruiser was the D7-A, which saw use as early as 2269. (FASA RPG: Star Trek IV Sourcebook Update)

A significant class variant was the D7-M or K't'inga-class. (FASA RPG: Star Trek IV Sourcebook Update)

In 2272, several D7-class ships were among the Klingon vessels assimilated by the Borg, who were manipulated by the rogue Vulcan scientist T'Uerell while she was allied with the Klingons. These assimilated Klingon ships engaged Starfleet in battle, during Admiral James T. Kirk's efforts to thwart T'Uerell's plans, and were destroyed. (ST video game: Legacy)

The K't'inga-class battle cruiser began to replace the D7 class during the 2270s. (Star Trek: The Motion Picture)

The D7 was finally "retired decades" prior to 2377. (VOY episode: "Prophecy")

Interest in these vessels by the Federation continued to appear well into the 2370s, as data on this class was commonly found within numerous Starfleet files. (TNG episodea: "The Naked Now", "The Last Outpost", "Conspiracy"; VOY episodes: "Drone", "The Voyager Conspiracy")

At least one D7 remained in service well into the late 2370s, when the IKS Voq'leng was encountered by USS Voyager in the Delta Quadrant in 2377. This vessel was destroyed when the ship's commander, Kohlar, initiated a self-destruct. (VOY episode: "Prophecy")

Variants[]

The D7 class name describes any number of variants of the class, which included many individually named and numbered series.

Akif-class (battlecruiser)
Klolode-class (D7-D5)
K't'agga-class ("Painbringer", D7A cruiser)
K't'kara-class ("Bringer of Destiny", D7C cruiser)
K't'alla-class ("Truthbringer", D7G cruiser)
K't'inga-class ("Bringer of Destruction", D7M cruiser/battlecruiser)
K't'rika-class ("Bringer of Agony", D7R cruiser)
K't'mara-class ("Bringer of Justice", D7S cruiser)
Koloth-class (frigate)

The Romulan-owned D7s were referred to as Stormbird-class vessels, and that class name seems to refer to multiple types listed above, most notably the Akif and K't'inga-classes.

Features[]

D7 startrek10 — A D7 class battle cruiser under attack

D7-class vessels were armed with disruptors, photon torpedoes, and tractor beams. (WizKids module: Attack Wing)

Known vessels[]

Klingon starships[]

IKS Devisor
IKS D'k Tahg
IKS Ectacus
IKS Gr'oth (IKS-4175)
IKS Roney
IKS Stormwind
IKS Tr'loth
IKS Varchas
IKS Voh'tahk (IKC-4176, alternately known as the IKS Klolode or IKS Ch'dan)

Klolode-class[]

IKS Klothos

D7A K't'agga-class[]

IKS Dun Da Spu'
IKS Gomex-zha
IKS Khorazhar
IKS K't'suka
IKS Kung

D7c K't'agga-class[]

IKS Fire Blossom

D7M K't'inga-class[]

IKS Amar (IKC-7736)
IKV Bardur
IKS B'Moth (IKC-7739)
IKS Chargh
IKS HaH'vat (IKC-7001, also referred to as IKC K'elric and IKC Va'tal)
IKS Hakkarl (KL-1017)
IKS Kol'Targh
IKS Korvat (IKC-5502)
IKS Kronos One (IKC-7748)
IKS Melikaphkaz (KL-908)
IKS Qob
IKS T'acog (IKC-7750)
IKS Tebtivu
IKS Tewniwa
IKS T'Ong
IKS Vo'taq

Other variants[]

{IiKS|Qaw'qay}}
IKS Terror (dreadnought configuration)

Mirror universe Klingon starships[]

K't'inga-class[]

IKS Amar
IKS Gr'oth
IKS Bortas
IKS Klothos
IKS Qo'noS One
IKS K'tanco
IKS Q'om
IKS Qud
IKS Sod

Uncertain[]

IKS Ghargh
IKS Klolode II
IKS Kormak
IKS Star Blaster
IKS Taj
IKS Ekkava (KL-818)
IKS Tarkan
IKS Alliance
IKS Flyer's Pride
IKS Nightwing
ChR Shalyar
ChR Sun Falcon
ChR Gorget
ChR Moonhawk

Romulan starships (Stormbird-class)[]

ChR Gladiator
ChR Red Talon

Akif-class[]

ChR Memenda

D-7M K't'inga class[]

ChR Hheirant
ChR Javelin
ChR Pillion
code-name Arakkab
code-name Kenek
code-name Ykir

Mirror universe Romulan starships[]

K't'inga-class[]

RSE Actium
RSE Pharsalus
RSE Rubicon