125519 served in the Korean War in 1952, assigned to VMO-2. In the photo it is temporarily on the museum floor with rotor blades removed while being rehung in a new location. On display in the museum main building.

Preserved at National Museum of Naval Aviation, Pensacola. Photo from: Civil Aviation Historical Society, Melbourne, Australia

USMC four-seat version of the Sikorsky S-52-3. 79 delivered to the Marines from 1952.

HO5S was the navy designation for the S-52 and 87 examples were procured for the Navy, Marines and Coast Guard. Although it was used in Korea as a scout, observation and medevac helicopter the HO5S was always something of a stopgap until the more advanced designs that superseded it came along. Now on display at the fantastic national Naval Aviation Museum.