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Previous destroyer ship class deckhouse and command and control spaces used steel and aluminum. The materials were inexpensive and utilized common shipyard construction practices; however, internal and external fire protection, EMI shielding, lightning protection, and Radar Absorbing Material (RAM) had to be added to the structure, consequently adding initial acquisition and life cycle costs.
Both DDX and CVN are baselining composite deckhouses (DDX) and islands (CVN), driven by weight requirements and Center of Gravity (CG). To insert state-of-the-art war fighter capability the ship design requires a low center of gravity (reduced top-side weight), stealth (signature and survivability), EMI Protection (state-of-the-art electronics), all meeting Fire, Smoke & Toxicity (FS&T) requirements.
Originally posted by Winchester Ranger T
Originally posted by stumason
Try reading up on the Astute then. They carry a weapons loadout over twice that of the Trafalgar Class currently in service. Up to 32 missiles and Torpedoes in fact. Not bad for a submarine.
Seeing as the new Virginia class carries 16 Tomahwaks and 26 Torpedoes, its not that shabby seeing as the Virginia has the VLS. Also, the Virgina only has 4 tubes were as the Astute has 6.
Actually with the VLS system the Virginia has 20 launch tubes (16 + 4) and by your own figures 10 more weapons, all of which it can launch much, much faster.
Originally posted by Retseh
I mostly agree. The Type 45 could have a been a competent destroyer, on a par with the best out there, but as it is, it is heavy and lightly armed.