USAF Kaman HH-43 Huskie SAR in Vietnam

The Kaman HH-43 Huskie was a helicopter with intermeshing rotors used by the United States Air Force, the United States Navy and the United States Marine Corps from the 1950s until the 1970s. It was primarily used for aircraft firefighting and rescue in the close vicinity of air bases, but was later used as a short range overland search and rescue aircraft during the Vietnam War. https://en.wikipedia.org/wiki/Kaman_H... footages from US National Archives