CG(X)

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The CG(X) is a planned ship design of the U.S. Navy. It is called a cruiser, but it is to use the same hull form as, and be developed from, the DD(X). The CG(X) resulted after a massive cut to the SC21 (21st Century Surface Combatant) program.

The CG(X) is intended to replace the existing Ticonderoga-class Aegis cruisers and provide improved missile defense and air warfare capabilities. It will share with DD(X) a common propulsion architecture and a stealthier hull form. This hull form will contain an integrated all-electric power system that is more efficient and survivable than today's propulsion systems, and provides more power capacity for future weapons.

While the planned CG21 was much bigger than the DD21, the CG(X) is essentially a DD(X) hull with more VLSs in place of the gun system. The CG(X) will mark a narrowing of the previously much larger difference between cruisers and destroyers (see also 1975 ship reclassification).