Vigilant Trimarian Command Battleship

Length:

962 m (wl); 984 m (oa); 
Beam: 237 m; 
Draught: 26.7 m

Displacement: 2.85 million tonnes full load

Armament:

5 x 4 762 mm ETC guns (A, B, C, X, Y positions);
6 x 1 203 mm naval railguns guns port and starboard; 
6 x 2 153 mm ETC guns port and starboard;
4 x 96 cell Mk 136 VLS launchers;
8 x 660 mm TT;
16 x Hornet SAM launchers;
20 x Rattlesnake CIWS

Protection:

1,200 mm - 1,600 mm advanced armour composite (titanium, vadium, aluminum, amorphous steel; 
Enhanced ERA; 
Ballistic ceramics; 
Depleted uranium on trimaran hull construction. Double-bottomed, reinforced keel with void spaces including KERI foam;
Support provided by honeycomb frame. Composite rods and ceramic kinetic reducing plates provide additional protection against KE attacks.

Propulsion:

12 x Pebblebed nuclear reactors with 14 propulsors and eight internalised waterjets
Compulsators provide power to railguns from primary power system 
Each reactor surrounded by thermal insulation to reduce noise emission and infared signature 
Six diesel turbines provide emergency propulsion. 31.2 knots maximum. 28.4 knots maximum cruise

Aircraft:

Capable of carrying and launching 60-72 STOL aircraft from two full runways near the outriggers
Also carries 12 medium helicopters for ASW patrols.

Electronics:

AN/SLY-2 (V) Advanced Integrated Electronics Warfare System; 
AN/SPY-4 MFR and AN/SPN-23 navigational radars; 
AN/SQR-6 (B ) passive towed array and AN/SQS-57 dual-mode mounted digital sonar array; 
A/P Mounted Sonar: AN/SQS-57 active/passive, preformed beam, digital sonar providing panoramic echo ranging and panoramic (DIMUS) passive surveillance.

Countermeasures: Decoy: AN/SLQ-25 Nixie.

Complement: 10,600 + 190 aircrew

Price: $355 billion

Running Cost: $40 billion.