The K'T'Leth Heavy Bird of Prey was developed as a successor to the successful T'Larr Heavy Bird of Prey.
The K'T'Leth is equipped with numerous weapons enhancements developed by the Klingon Empire during and directly after the Dominion War. This included both Threshold Disruptors and a single Spinal Photon Torpedo.
In addition to its heavy arsenal, the K'T'Leth is equipped with two LCV docking ports, one located on the underside of each wing. This addition to the hull is to allow smaller Birds of Prey to dock for resupply or personnel transfers.
This design was recommended by Daniel Haughton, but it has taken me forever to get the SCS finished. I am not sure about the Spinal Photon Torpedo's stats, but it should invoke fear in the heart's of the Federation.