So more thoughts on 'Deadnot' Class:
Ork vessels are continually rebuilt and upgraded. Ships may change weaponry or even class after a battle. Xenographers note that Orks bear a peculiarity when it comes to building vessels. Most of their ship components are salvaged from Imperial hulks, retrofitted to the strange alien designs.
Most vessels begin their dreaded existence in a variety of forms, various Ork commanders will need components for their vessels, so every salvage gets parceled out however the clans see fit. It is not often that Orks will allow any one vessel to grow too much in power, presumably because the Xenos would find it a good fight to challenge the larger vessel.
One thing proves true however in Ork naval ethics, that whoever wins the battle gains rights to the majority of the salvage. Most of these parts are incomprehensible to the orks, and cannot be fitted to their Kroozers, or just wouldn't be for an unknown reason. The constant rebuilding and exchange of warship components is almost baffling. However there is one truth that has shown through, that Ork vessels tend to increase in size over time. This is likely due to winning battles and adding ever more raw metal to the ship with each refit. No one knows quite how long it takes, but presumably a ship winning tens, or perhaps hundreds of battles eventually becomes large enough to dwarf even the Emperor's Battleships....
These vessels are inevitably hunted without relent, as Naval commanders find that the Xenos become all too confident with such a large vessel in their ranks.
Type/Hits Speed/Turns Armour Shields Turrets
Battleship/14 15/45' 6+/5+/4+ 3 3
Prow Guns: 2D6+6 45cm
Prow Heavy Guns: 10 15cm
Prow Torpedoes: D6+6
Port/Stb Guns: D6+6 30cm
Port/Stb Heavy Guns: 6 15cm
Port/Stb Torpedoes: D6+4
Dorsal Lances: D3+2 45cm
Swaps for LBs accordingly. Probably +2 hit upgade.