Nurikabe-class support battleship

The Nurikabe-class support battleship is a specialised variant of the Senmetsu-class battleship built for electronic warfare and long-range communications relay purposes. Using an identical hull structure, the main external changes to the battleship include a revamped dorsal superstructure as well as the addition of the eight distinctive hemispherical large-type multipurpose electronics domes. These protrusions contain powerful communications and electronics warfare suites, as well as power sources for this equipment. The interior of the Nurikabe-class has been entirely overhauled from the base Senmetsu-class beyond basic corridor layout, with large sections of the ship now dedicated to powering and running the electronics domes. Additionally, the Nurikabe-class has been stripped of much of its offensive weaponry in exchange for a greater focus on combat support.

Armament
In terms of armament, the Nurikabe-class is clearly not intended to engage in combat with enemy warships directly, lacking beam laser arrays and a heavy main gun battery, though still maintains a formidable array of weapons for self-defence. The main guns of the Senmetsu-class, 128 Type-94 560mm guns in 16 octuple turrets, have been reduced to just 48 Type-94 guns in 12 quadruple turrets. The Senmetsu's mid-range battery of 36 Type-3 155mm guns in twelve triple turrets have also been reduced to four triple turrets. These are supported by 150 quad-cell Type-41 missile launchers.

Complementing this is a close-range defensive arsenal of 20 dual Type-89 naval guns, 124 triple Type-96 point-defence laser cannons and 90 Yamabushi CIWS units. The CIWS array is identical in number and placement to the Senmetsu-class.

Electronic warfare
While it may lack in direct armament, however, the Nurikabe-class's main role is to support fleet activities with communications and electronic warfare support and not to act as a line warship. It is in this support role that the Nurikabe is far more well-equipped, equipped with its eight large-type multipurpose electronics domes. These eight distinctive hemispheres house and protect an array of electronical signals projectors with a range of several light years, enabling the Senmetsu-class to provide electronics warfare support to an entire battle area. Such support include jamming of enemy communications, guidance systems and navigations equipment, "hiding" friendly forces from enemy detection, disrupting enemy electronics warfare, carrying out signals intelligence and more.

The Nurikabe is also able to support terrestrial combat actions with its electronics warfare capabilities.