What is sikorsky ho3s-1?

The Sikorsky HO3S-1 is a helicopter that was built in the United States by Sikorsky Aircraft Corporation in the early 1950s. It was a variant of the Sikorsky S-51 helicopter, which was developed in the late 1940s and early 1950s for use by the United States military.

The HO3S-1 was primarily used for rescue and transport operations, as it was equipped with a hoist and could carry up to four passengers in addition to the pilot. It was also used for reconnaissance and observation missions in the Korean War.

The helicopter was powered by a single Pratt & Whitney R-985 radial engine, which produced around 450 horsepower. It had a top speed of around 95 miles per hour and a range of up to 300 miles.

In total, around 368 HO3S-1 helicopters were produced by Sikorsky Aircraft Corporation between 1950 and 1953, and they were used by the United States Navy, Marine Corps, and Coast Guard, as well as by other countries around the world.