USS Dolphin (AGSS-555) was a United States Navy diesel-electric deep-diving research and development submarine. She was commissioned in 1968 and decommissioned in 2007. Her 38-year career was the longest in history for a US Navy submarine to that point. She was the Navy's last operational conventionally powered submarine.
Aerial starboard bow view of the research submarine USS DOLPHIN (AGSS-555) underway - DPLA - 6705d2a27db49a15a352e3c17ca77313
A stern view of the research submarine USS DOLPHIN (AGSS 555) underway - DPLA - fbf3bd30a9846cea005d0795f896ea94
An aerial starboard view of the submarine USS DOLPHIN (AGSS 555) underway off the coast of Southern California - DPLA - 5041ee681753fc2c6785817efd01e48b
US Navy 020522-N-5067K-004 USS Dolphin (AFSS 555)
US Navy 020522-N-8894M-001 News Conference - USS Dolphin (AGSS 555)
US Navy 051118-N-3714J-059 The chief petty officers assigned to the deep submergence vehicle USS Dolphin (AGSS 555), celebrate their change of command ceremony
US Navy 051118-N-3714J-068 A Sailor assigned to the deep submergence vehicle USS Dolphin (AGSS 555), hoists the Commanding Officers pennant during a change of command ceremony
US Navy 051118-N-3714J-067 Cmdr. Andrew C. Wilder relieves Cmdr. Edward L. Hasell as Commanding Officer, USS Dolphin (AGSS 555) during a change of command ceremony