According to the Museum’s website (which also provides technical specifications):

Courtesy of the United States Army Center of Military History

The “Iroquois” was more commonly known as the “Huey” as there were a series of the “HU” models which were subsequently re-designated “UH.” Various versions of this helicopter are operational with more than 36 air forces around the world. Well over 6,000 have been produced.

The UH-1B served with the U.S. Army in Vietnam and was the mainstay of Army Air Development Operations. They were used as transports, gunships, airborne ambulances, search/rescue and as general utility aircraft.

The design first flew in 1955 and the aircraft has been produced under license in Japan, Italy and Germany. A pure gunship development of the Huey was the AH-1G “Cobra.”

This craft was used by the U.S. Air Force Forward Air Control (USAFFAC) stationed at Brookside Airport, McCordsville, IN.

Taken with a Sony RX100 M3.