Sikorsky SH-3 Sea King Ship-based Anti-Submarine Warfare (ASW) Helicopter
The hugely-successful Sikorsky S-61 platform has been adapted to a wide variety of roles including ASW, SAR, VIP transport and AEW forms globally.
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At its peak, the Sikorsky SH-3 series of navy helicopter was a widely-used and successful platform undertaking a variety of over-water roles including Anti-Submarine Warfare (ASW) and Search And Rescue (SAR) operations. Development stemmed from a 1957 United States Navy (USN) requirement calling for a flyable prototype by 1959. A first-flight was had on March 11th, 1959 and service entry followed in 1961. Production spanned 1959 to the 1970s.
By this time in the Cold War, the Soviet Navy had put a heavy investment on its submarine force and, in response, the USN was forced to modernize its surface fleet to deal with the underwater threat. This also included strengthening its air arm for the Anti-Submarine Warfare (ASW) role and components like the Sea King were developed for just that.
The resulting Sikorsky design became a medium-class twin-engined amphibious system with the appropriate support for ASW mission equipment and shipborne operational capabilities.
The prototype was designated XHSS-2 and was a one-off example. YHSS-2 represented the preproduction form and seven were built. HSS-2 was the original in-service designation of the Sea King until the 1962 U.S. military reorganization changed this to SH-3. Hence the original HSS-2 now became the SH-3A in service. Two-hundred forty-five of this mark were produced.