The Sword of Kahless class, or qey IS betleH class, starship was a type of Klingon battleship used by the Klingon Empire during the year 2293. They were, at the time, one of the largest class of vessels within the Klingon Defense Force.

At first, there were only two ships of this class produced and active in service, one of which was the flagship and was commanded by the Chief of Staff. There production caused much outrage among the members of the Klingon High Council who felt that that the ships were too costly to produce.

They were large bulky designs which consisted of six warp nacelles. They also possessed a heavy assault phaser that was capable of breaking the shields of starbases and heavily fortified locations. This weapon had a slow recharge rate, requiring 30 seconds before each weapon burst. Furthermore, a feedback can be implemented to increase the weapons damage potential. Despite its strong firepower and defences, it was very slow due to the space devoted to the ships weapon array. This made attacks on the ships near suicidal to enemy commanders, especially at the bow of the craft.

(TOS game: Klingon Academy)

Klingon starship classes
Klingonese names	Akif • B'rel • Baka Re' • Ber'taa • Besz Ra'te' • Birok • CharghwI' • Chava'Kal • ChunDab • Chuq'Beh • Chutok • D'aka • D'ama • Dath D'lan • D'esta Kar • D'Gavama • Eakin K'nall • Fek'lhr • Haqtaj • H'ban Pav • Jach'Eng • Jfolokh • Kalath • Karas • Kas Maal • K'el Ri'anda • Kh'exrilin • K'hanakh • Khitomer • Kl'ar • Klolode • Kl'sarza • Kl'xenova • K'mirra • K'nall • K'nel • Koloth • Kom Ka'des • Komo Val • Koreba • Kronos • K't'agga • K't'alla • K't'inga • K't'kara • K't'mara • K't'rika • K'vort • K'vort Cha • L'rexa • Lar'hal • Lara'atan • LI'wI' • Mas To Gal • May'Duj • Mortum Hesta • Na Ra'den • Negh'Var • NuQ'Duj • PIH • Plen Zha • PumwI' • qa'Hos • Qang • Qeh'Ral • Qexa • qeylIS betleH • QuD • Riskadh • Sivista • SuQ'jagh • SuvwI'Qeh • T'h'lar • Talat Kh'exesta • Tas'esta • Vakk • V'al'kon • V'kar Zadan • V's'talo • VoDleH • Voodieh • Vor'cha • Z'gal • Z'gavasta • Z'gavva • Z'mortama • Zha Mortas
Translated names	Accuser • Administrator • Alliance • Battle Cruiser • Bird of Prey • Bringer of Agony • Bringer of Destiny • Bringer of Destruction • Bringer of Justice • Carrier of Doom • Catapult • Chancellor • Death Boot • Death Rite • Death Stalker • Defender • Emperor • Enforcer • Ever Victorious • Fat Man • Great Bird • Grim Reaper • (Gull) • Healer • Insurrection • Little Killer • Luckless • Mender • Mover • (Murph) • One Wing • Painbringer • Pathmaker • Predator • (Raptor) • Ravenous • Relentless • Saber • Seeker • Speedstar • Stalker • Star • Stinger • Stingtongue • Strong Victor • Stronger Bird • Suspicious • Swiftwind • Sword of Kahless • Throne Seeker • Trader's Game • Truthbringer • Tugboat • Unseen Creeper • Warrior's Anger • Watcher • Winner
Alphanumeric names	B5 • D2 • D3 • D4 • D5 • D6 • D7 • (D7/D5 Klolode • D7 Akif • D7A • D7C • D7G • D7M • D7R • D7S • D7 Koloth) • D9 • D10 (bird of prey) • D10 (cruiser) • D11 • D12 (bird of prey) • D12 (cruiser) • D14 • D16 • D18 • D20 • D32 • E4 • E6 • F5 • F5B • F5C • F5G • F5GB • F5K • F5L • F5W • F5Y • F6 • FWK • FWL • FWC • G2 • G3 • G4 • G5 • G6 • G8 • K3 • K4 • K5 • K6 • K14 • K15 • K17 • K18 • K22 • (K22B) • K23 • K24 • K26 • K27 • K30 • K32 • L6 • L9 • L13 • L24 • L42 • S4 • S5 • S8 • T3 • T5 • T12
By time period or type	Birds-of-prey (22nd century bird of prey) • 23rd century scout vessel • mobile battle base • battleship • cargo ship • colony ship • construction ship • dropship • mining freighter • prison barge • repair ship • scout ship