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The Imperium class heavy battle cruiser was a type of warship employed by the Romulan Star Empire in 2280.

These ships were made for a more striking design with a massive command boom appearing at the center of the vessel, in between the elegant wings of the ship which gives the ship a near catamaran type of appearance. Strangely though, these ships are rarely encountered and their full capabilities were not known. (TOS video game: Klingon Academy)

Starfleet Command (game)

The Firehawk (Rihannsu: Llaiir'Dhael) was the heavy cruiser version of the Sparrowhawk light cruiser. This ship is not modular. While it could be constructed with different modules, any given ship carried only a single type of module through its entire service.

Firehawk-K variant

A Firehawk-A (FHA) could be refitted with K-modules, producing a Firehawk-K (FHK). This was an extensive refit, however. (TOS video game: Starfleet Command I)


The Novahawk (NHK) was the Heavy command cruiser of the Firehawk series. It only carried K-modules. (TOS video game: Starfleet Command I)


This ship was another Romulan effort to deploy more Type-R torpedoes. A variant of the Firehawk, the Regalhawk (RGK) was less expensive and slightly less capable than the Royalhawk. These ships rarely operated alone, not from doctrine, but because their heavy torpedoes were in high demand for the most important attacks. (TOS video game: Starfleet Command I)


The Royalhawk (RHK) was a limited-production variant of the Novahawk. It was designed to field the massive Type-R plasma torpedo in greater numbers to counter the Gorn Strike cruiser. Like the Novahawk and its more modern cousins, it only carried K-modules. This ship could be considered a Heavy Battle cruiser back in the late 23rd century. (TOS video game: Starfleet Command I)


The ultimate expansion of the Heavy Hawk designs, the Killerhawk (KHK) was essentially an attempt to build a pocket Dreadnought. This design was not considered successful since it placed too many weapons on too small of a hull. The maintenance cost to support this ship was far higher than any other Firehawk design. Only a few were built. (TOS video game: Starfleet Command I)

Romulan starship classes
Romulan language names AlocalaAmarcanAmosarrAye MosaramBaydronCaladanComiliusD'delithamD'deridexD'dredarDelithamDelon VastamDeresusD'gerokD'KazanakDraconariusD'renetD'retexD'ridrenD'seraD'serenD'tavanD'therosD'valekD'vangaD'viretD'virinD'VorixDhelanGalan StelriGanumGolgarothGrafflerHathosHorosIvarixKelkarrumKhnialKlivai Vang'radaiLanoraLlaihrLlaiir'DhaelMandukamMeretMogai ~ NorexanMoorabbinMorlasam Cl'vangasMorlasasi StelamMularrNarvasam'alNarvasam StelasNei'hrrNelvekNir'atN'renixOcala SindariPhaerosPraexPrelarRalaaram OcalaRalekRanajmarRas LovahR'daranR'derexRe'ravsamReemeaRevastalR'tanSerexSethenShirekralStelai'delethamS'ten VastamT'varoS'ten TalasamTakaanTakara MorlattaTalas MosarumTemar VastaramTemar VastariThalanTheronTirethiT'kairinT'kassanT'korexT'LissT'rasusT'varoUstalam StelasVadakVadaso StelriVas HathamVas Hatham (scout)Vas'delethamVas'kalabamVas'maklaramVas'rosvlaiVastagor LattamVastagor VastarumVastam Cl'vangasVastari SanalamVastemeVelesVenatorVentarixVeranalVercaalVerelan VastarumVereleusVespinVidianVithrelV'gerenV'gurinV'tanaV'tirValdore Emblem of the Romulan Star Empire.
Translated names (Akif) • Battlehawk • "Bird of Paradise" • Bird of PreyBird of Prey (scout)Centurion (cruiser)Bright OneComet of DestructionDeath TalonDeath FlyerDefender of StarsDreadnaughtEnhanced FireExecutionerExplosive AvengerFalconFree FlightFire SwarmGallant CarrierGallant WingGraceful FlyerGreat DefenderGriffinGryphonHarpyHawkHeavy DefenderHunterImperial HawkImperium • (Kalath) • Kestrel • (K'hanakh) • (K't'inga) • LegionLittle NestNestarNight FlyerNightwingNovaPhoenixPraetorPraetorianProtectorRaptorScimitarSenatorShadowShrieking BirdShrikeSilver BirdSkyfireSnipeStar SeekerStargliderStarlifterStormbirdSwarmSwift WingTalon ~ ThetaTraitorous EnemyUnbound BrotherVengeanceVigilant OneWar EagleWhitewind ~ WhitewingWind CarrierWing of DoomWing of VengeanceWinged DefenderWings of Justice
Alphanumeric names B-type warbirdCS2 • (D7D7 AkifD7M) • E5F2H4H5I4I7J2J3J4J8 • (K3) • M4M8N1N2N5N8P2P3P12Q1Q4R1R4S3S4S9S11T2T5T10ThetaU4U7U9U13U15U21V1V2V4V5V6V7V8V9V11 (D7)V20V27V30 ~ V31Z1
By time period or type biogenic transport22nd century bird-of-prey2150s bird-of-preylate-2150s bird-of-prey23rd century bird-of-preylate 23rd century bird-of-prey2370s bird-of-prey25th century bird-of-preyattack raptorbattlecruiser22nd century cargo ship24th century cargo shipcolony shipconstruction shipmining freighterrepair shipscience vessel