The Sikorsky HH-52 Seaguard is an American helicopter built by Sikorsky as S-62's model. It was used by the United States Coast Guard between 1961 and 1988 for transport and search and rescue duties. It was replaced by Aérospatiale HH-65 Dolphin. Some were used in Iceland, India, Japan, Philippines and Thailand. Philippines Air Force was the last operator, until 1993.