D5 class

The D5 class was a type of battle cruiser fielded by the Klingon Empire during the mid-22nd century. ()

The D5 entered service in 2225 and was nicknamed the "Devastator" class. It was the first Klingon starship design encountered by Starfleet that had the wing-shaft design. It was more powerful than comparable Federation designs of the time until Starfleet fielded the. It was the mainstay of the Klingon fleet until the D7 class entered service in the 2250s.