Sikorsky H-34 Choctaw – Sikorsky S-58
A military helicopter originally designed by American aircraft manufacturer Sikorsky for the United States Navy for service in the anti-submarine warfare (ASW) role.
Sikorsky H-34s have since served mostly as medium transports on every continent with the armed forces of twenty-five countries – from combat in Algeria, the Dominican Republic, Nicaragua, and throughout Southeast Asia, to saving flood victims, recovering astronauts, fighting fires, and carrying presidents. As one of the last piston-powered helicopter designs before its replacement by turbine-powered types such as the UH-1 Huey and CH-46 Sea Knight, it would see a remarkably long run of 2,108 H-34s produced between 1953 and 1970. (from Wikpedia)
Here are some photos of our UH-34D being rescued from Florida. She has Vietnam combat time from the USS Kitty Hawk.