1970s and 1980s
In 1973 Barbel's weapons gang set a SUBPAC record for successfully shooting 118 torpedoes that year. This included successful salvo firing two Mark 16-8 exercise torpedoes, and a successful MK 16-8 warshot operational test. In addition the boat performed a zero error Mark 45 torpedo Technical Standardization Inspection conducted by DoD, a Navy Technical Proficiency Inspection, and the torpedomen identified the source of the MK 45 torpedo "flex hose eater problem." For this record, Barbel was awarded the 1973 Battle Efficiency "E". "Barbel's" record for firing torpedoes was around 1978. She also won the goal of sinking the aircraft carrier "Enterprise" during a RIMPAC exercise during that same period.
From 19 January 1981 to 22 January, Barbel and Grayback (SSG-574) participated in ASWEX 81-3U off the coast of the Philippines, an exercise in shallow water ASW. The submarines opposed the transit of the oiler USNS Navasota (T-AO-106), which was escorted by the destroyers John Young (CTF 75 embarked) and Elliot, and frigates Gray, Whipple, Lang, Ramsey and through the narrow straits.
On 1 May 1989, while operating off Kyūshū, Japan, three submariners were washed overboard by heavy waves. One sailor was rescued; two drowned.
Read more about this topic: USS Barbel (SS-580)