D4 class (Kelvin timeline)

The D4 class was a small type of patrol ship used by the Klingon Empire in the late 2250s of the alternate reality.

History
Three of these ships were on patrol in the Ketha Province on Qo'noS. They then came across a K'normian trading ship carrying a team from the USS Enterprise (NCC-1701) (alternate reality) under Captain.