The concept, first presented at the Combined Naval Event 2025, will allow network strikes against ships and ground targets using barrage capsules, combining existing capabilities with existing weapons systems.Northrop Grumman has unveiled a new supersonic anti-ship capability concept for U.S. Navy submarines by combining its AARGM-ER anti-radar missile with a low-visibility accessible Capsule System (SACS) — A vertically launched underwater vehicle capable of carrying a wide range of non-marine payloads.Northrop Grumman's work on the Stealthy Affordable Capsule System (SACS) began in 2002. The first tests were completed in 2003, which confirmed the capsule's ability to launch non-marine UAVs. During the 2005 Exercise Silent Hammer trials, the capsule was tested aboard the USS Georgia (SSGN-729) in order to improve US Navy submarines in counterterrorism missions.
The NAVSEA presentation at the Joint Undersea Warfare Technology Conference in 2002 presented the concepts of SACS as an underwater launch platform from a flexible payload Module (FPM) developed for the SSGN class Ohio.
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