Since World War II had ended in mid-August 1945, just weeks before Sarda′s launch, Sarda no longer was needed for wartime service, and the decision as to whether to commission or scrap her had to be made.

During the period between launching and commissioning, Sarda was fitted out with an extra large conning tower to permit installation of experimental equipment.

After commissioning, Sarda conducted her shakedown cruise in the Caribbean Sea, then returned north to commence experimental work from New London, Connecticut.

In the early 1960s, Sarda continued training work, but devoted more time to providing services to antisubmarine warfare units conducting exercises.

In the winter of 1963, she deployed to the Mediterranean Sea, where she operated with the United States Sixth Fleet, and, on her return to New London in late May 1963, she resumed school ship duties.