The Sword of Kahless class, or qeylIS 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. Their 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 video game: Klingon Academy)