Vietnam Veterans and current Marines pose for a group photos in front of a UH-34D Helicopter. This helicopter was the first rotary wing air frame flown in Vietnam. The helicopter will become part of the National Museum of the Marine Corps Vietnam exhibit. - Vietnam Veterans and current Marines pose for a group photos in front of a UH-34D Helicopter. This helicopter was the first rotary wing air frame flown in Vietnam. The helicopter will become part of the National Museum of the Marine Corps Vietnam exhibit.