The Navy has drafted notional requirements for a next-generation X-band radar to outfit its major surface combatant fleet with an improved ability to scan the horizon to hunt low-flying anti-ship cruise missiles, setting the stage for a multibillion-dollar competition to replace the venerable SPQ-9B which has been in the fleet since the 1990s. The service plans a major new acquisition program to satisfy its requirement for a modernized horizon-search capability that was dropped due to affordability concerns from its Air...
