From 1950 to 1952, he was at the U.S. Fleet Sonar School, as an ASW instructor and officer in charge in the C Pro-Submarine Sonar Instruction Section; from 1952 to 1953, he was assigned to the as executive officer and navigator, again being awarded a Navy "E". From 1953 to 1954 he was assigned to the as commanding officer and received another Navy "E"; from 1954 to 1955, he was assigned to the as commanding officer; and in 1955, he was assigned to the U.S. Submarine School as head of the Engineering Department. He began a study of nuclear physics and engineering.