On which platform is the Aegis weapons system primarily installed?

The Aegis weapons system is primarily installed on cruisers, which are large naval ships designed for fleet air defense and a variety of other roles. The system integrates various sensor and weapon systems, providing real-time data processing and decision support. Cruisers equipped with Aegis can engage in air, surface, and subsurface warfare, making them versatile assets in naval operations.

While there are aircraft like the F-14 that have been equipped with various weapons systems, the Aegis system is not installed on them. Similarly, while there are submarines with advanced combat systems, the Aegis system itself is not a standard feature on submarines; it is primarily associated with surface combatants like cruisers and destroyers. Therefore, the option that specifically identifies cruisers as the primary platform for the Aegis weapons system is the most accurate choice.