Sikorsky HH-52 Seaguard
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The Sikorsky HH-52 Seaguard is an early amphibious helicopter designed and produced by American helicopter manufacturer Sikorsky Aircraft. It was the first of the company's amphibious rotorcraft to fl
A U.S. Coast Guard HH-52A Seaguard helicopter
A Sikorsky S-62 prototype, circa 1962
A S-62 Prototype, in Le Bourget Airport, June 1959
HH-52 Seaguard with rescue basket lowered
San Francisco and Oakland Helicopter Airlines was a helicopter airline service offering scheduled passenger flights between San Francisco, Oakland, and other Bay Area cities. It was founded in 1961 bu
A Sikorsky S-61 of the airline.
The Alcopark garage in Oakland