The US Navy's has decommissioned its Los Angeles-class fast-attack submarine, USS San Francisco (SSN 711), at Naval Base Point Loma, US.
USS San Francisco will now be homeported in Norfolk, where the vessel will undergo a two-year conversion process to transform into a moored training ship.
After the conversion process, the vessel will be shifted to Nuclear Power Training Unit in Charleston, South Carolina, and will be used to train and challenge new generation of submariners through 2040.
Submarine Squadron 11 commanding officer captain Brian Davies said: "The USS San Francisco is a can-do, workhorse ship and there is no doubt that started with her original crew 35 years ago.
"She still has a lot of work to do and a new purpose to fulfil.
“Today will close that chapter of active-duty service, and bid her fair winds and following seas as she starts the new chapter of her conversion into a moored training ship."
Commissioned in 1981, USS San Francisco was a part of the Western Pacific deployment and served for more than 35 years.
The 360ft-long submarine has a displacement capacity of more than 6,300t and supported a range of missions, such as anti-submarine warfare, anti-surface ship warfare, strike warfare, and intelligence, surveillance and reconnaissance.
USS San Francisco commanding officer Jeff Juergens said: "By any measure, the San Francisco has had a stellar career as an operational submarine.
"I have been extremely fortunate to be one of the few to command this fine submarine, and especially lucky to get to command San Francisco for the last three years, which have been so successful."
Image: USS San Francisco during her last port visit in the city of San Francisco. Photo: courtesy of US Navy photo by Petty Officer 3rd Class Emiline Senn/Released.