Sikorsky HH-52A (S-62A) 'Seaguard'
Courtesy of the United States Coast Guard
This helicopter was one of 99 similar craft built for the U.S. Coast Guard. It is an amphibious search and rescue helicopter built in 1967. The "Seaguard" was a workhorse for the Coast Guard and they were based on Coast Guard cutters, icebreakers and air stations until they were retired in 1989. HH-52's were credited with saving over 15,000 souls on their 25 years of service.
This craft was stationed at the Detroit Coast Guard Air Station.
As the S-62A, it was the first turbine rotorcraft to be granted FAA approval for commercial use.