DSV-2 class

 1 DSV-2 class RESEARCH SUBMERSIBLE (DSV)

 Pendant    Commissioned      Status
 DSV-2      June 5, 1964      Active

"ALVIN," as she is unofficially named, was the last conventionally powered research submersible operated by the U.S. Navy to support search, rescue, research and deep-ocean recovery activities. These craft have also been employed to maintain sea-floor test range and acoustic surveillance equipment. The Navy also has nuclear-propelled research submarine NR-1,...