Sikorsky HH-52 Seaguard

The Sikorsky HH-52 Seaguard (company designation S-62) was a single turbine engine, three-blade rotor amphibious helicopter. Originally developed as a commercial venture by the Sikorsky Aircraft Corporation of Stratford, Connecticut, it was used by the United States Coast Guard primarily for air-sea rescue. The HH-52 has been replaced by non-amphibious types such as the HH-65 Dolphin, which rely solely on the use of a winch from a low hover to conduct rescue operations.

Variants

 * S-62: Prototype. First flew on May 22nd, 1958.
 * S-62A: Amphibious transport helicopter, powered by a General Electric CT58-110-1 turboshaft engine, with accommodation for up to 11 passengers. The S-62A was the first production version.
 * S-62B: One S-62 was fitted with the main rotor system of the Sikorsky S-58.
 * S-62C: Company designation of the HH-52A Seaguard.
 * S-61J: Produced under license in Japan by Mitsubishi.
 * HU2S-1G: Original designation of the HH-52A Seaguard. Redesignated HH-52A in 1962.
 * HH-52A Seaguard: Search and rescue helicopter for the United States Coast Guard; 99 built including 1 transferred to Iceland.

Users

 * Iceland
 * Icelandic Coast Guard
 * Japan
 * Japan Air Self-Defense Force
 * Japan Coast Guard
 * Japan Maritime Self-Defence Force
 * Philippines
 * Philippine Air Force
 * Qatar
 * Gulf Helicopters
 * Thailand
 * Royal Thai Police
 * United States
 * United States Coast Guard
 * SFO Helicopter Airlines