Built to replace Grumman’s venerable S-2 Tracker antisubmarine aircraft, the Lockheed S-3A Viking entered service on 20 February 1974 with Air Antisubmarine Squadron FOUR ONE (VS-41) Shamrocks. The first operational deployment of a Viking-equipped squadron took place when VS-21 Fighting Redtails went to sea with Carrier Air Wing ONE (CVW-1) aboard the modified Kitty Hawk-class carrier USS John F. Kennedy in 1975. The Viking would go on to serve for 42 years. Sixteen of them were modified…

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