Auxiliary Research Submarine -

The USS Albacore was perhaps the most influential research submarine ever built.

: Featured the revolutionary "teardrop" hull, optimized for underwater speed rather than surface travel. auxiliary research submarine

: As the Navy moved toward nuclear power, AGSS vessels like the USS Salmon were used to test remote-control operations and advanced sonar for the new SSN classes. The USS Albacore was perhaps the most influential

Details on the used for deep-sea acoustic testing. Tigrone (SS-419) (SSR-419) (AGSS-419) - NavSource Details on the used for deep-sea acoustic testing

The USS Dolphin was the Navy’s last diesel-electric deep-diving research boat.

The auxiliary research submarine program was pivotal in transitioning the Navy from World War II-era "fleet boats" to modern, high-speed nuclear vessels. By using these ships as "laboratories at sea," the Navy could test radical innovations—such as the teardrop hull—without risking the performance of the active combat fleet. 🏗️ Technical Specifications & Role