In 1961, the hatch of Mercury-Redstone 4 was prematurely detached and the capsule was filled with seawater.
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In December 1951 two Sikorsky H-5s of the USAF 3rd Air Rescue Squadron were based on the island and would forward deploy daily to Chodo Airport to operate search and rescue missions before being permanently deployed to Chodo in January 1952.
Sikorsky H-19, a helicopter formerly operated by the United States Army
Sikorsky H-53, a family of military helicopters built by Sikorsky Aircraft
An additional 550 were manufactured by licensees of the helicopter including Westland Aircraft, the SNCASE in France and Mitsubishi in Japan.
The Westland WS-51 Dragonfly helicopter was built by Westland Aircraft and was a license-built version of the American Sikorsky S-51.