: Specifically designed for deep-water acoustic research and ocean surveys. 🔬 Historical Evolution

While specifications varied by vessel, the AGSS classification generally defined a role focused on developmental testing rather than tactical deployment. : AGSS (Auxiliary General Submarine, Research)

: Hydrodynamic studies, acoustic research, and sensor trials Key Capabilities : Deep-water diving and littoral (shallow) research

: Served for 38 years (1968–2007), the longest career of any Navy submarine at the time of its retirement.