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1946-1948: Sikorsky XR-4C, S-51 ( HO3S-1G ) and Piasecki PV-17 ( HRP-1 )



April 6, 1949: US Coast Guard H035-l (HO3S-1G) completed the longest unescorted helicopter ferry flight on record. The trip from Elizabeth City, North Carolina, to Port Angeles, Washington, via San Diego, California, a distance of 3,750 miles, took 10 1/2 days to complete and involved a total flight time of 57.6 hours.



1949: Kaman K-225 ( HTK / H-22 Mixmaster ) The Coast Guard buy one ( $25,000 ) for evaluation.




1951: Sikorsky S-55 ( HO4S-2G/3-G / HH-19G Chickasaw )

Kaman HTK




1956: Sikorsky S-58

HUS-1G / HH-34F Sea Horse
HUS-1G


1959: Sikorsky S-62. The HH-52 Sea Guard was the United States Coast Guard first turbo shaft helicopter.

The photo pictured is a US Coast Guard HH-52A which was put in service with the original 3 blade system that came from the S-55(H-19). The Coast Guard bought 96 of the "A" model and flew them from approximately 1961 to 1985. The model was retired with the same designation HH-52A it received originally. The paint scheme pictured was the first of several styles. In 1967 the aircraft received the new red, white and blue "slash" the Coast Guard still retains. HH-52's that were deployed to the ice caps on ice breakers were painted orange with a white "slash" on the tail. This tradition is still praticed today. HH-52A


1966: Sikorsky S-61 ( HH-3F Pelican )



1979: Aerospatiale HH-65 Dolphin

In order to comply with US law, the majority of the helicopters value had to be produced locally, most notably the substitution of Avco Lycoming engines in place of the original Turboméca units
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