Towed Array Gravity Sensor

The Towed Array Gravity Sensor debuts in Grimm's Legacy as a passive detection system that extends from a battleship's stern, using thrusters to maintain tension while scanning for gravity-wave signatures of distant vessels. Across the series, the technology matures from a single-ship auxiliary into a networked, multi-platform sensor web that can be rapidly deployed, repositioned, or even sacrificed to create temporary detection corridors during fleet actions. Its evolution mirrors the Navy's shift toward stealth warfare, where capital ships increasingly rely on extended sensor reach rather than active emissions to locate cloaked or coasting targets.