4 D-7 Battlecruiser

D-7 Class
Cloaking Device. To play this ship, you must command two personnel.
The D-7 incorporates a solid design with firepower that the Imperial Klingon Defense force used often and without prejudice.
Range 8    Weapons 7    Shields 6
12 U 120

Image Source: The Original Series: "Elaan of Troyius"