This economy system patrol unit is usually dropped in a colony system by a larger unit, or built in the system it will patrol. With only impulse drive it will always be limited to that system.

Using a B'rel class bird of prey shell, the Klingons left out the warp nacelles, which the B'rel has built alongside the spine of the ship, and substituted additional crew quarters and holding cells. The ship is used to police Klingon systems, and is treated as a law enforcement vessel in more ways than one, as service as a crewman on one is regarded as a punishment.