Two 1st Helicopter Squadron UH-1N Iroquois fly over Joint Base Andrews, Md., June 9, 2017. The flight allowed UH-1N crew members to train for high-priority airlift missions and defense support to civilian authorities. (U.S. Air Force photo by Senior Airman Delano Scott)

Headphones hang inside a 1st Helicopter Squadron UH-1N Iroquois at Joint Base Andrews, Md., June 9, 2017. The 1st HS conducted a flyover demonstration above the Air Force Memorial in Washington, D.C., in support of the U.S. Air Force Band’s Heritage to Horizons concert series. (U.S. Air Force photo by Senior Airman Delano Scott)

A 1st Helicopter Squadron UH-1N Iroquois takes flight in support of the U.S. Air Force Band’s Heritage to Horizons concert series at Joint Base Andrews, Md., June 9, 2017. The flight allowed UH-1N crew members to train for high-priority airlift missions and defense support to civilian authorities. (U.S. Air Force photo by Senior Airman Delano Scott)

A 1st Helicopter Squadron UH-1N Iroquois formation flies above the Potomac River in Washington, D.C., June 9, 2017. The 1st HS conducted a flyover demonstration over the Air Force Memorial in support of the U.S. Air Force Band’s Heritage to Horizons concert series. (U.S. Air Force photo by Senior Airman Delano Scott)

Capt. Daniel Rasfeld, 1st Helicopter Squadron UH-1N Iroquois copilot, flies over Washington, D.C., June 9, 2017. The flight allowed UH-1N crew members to train for high-priority airlift missions and defense support to civilian authorities. (U.S. Air Force photo by Senior Airman Delano Scott)

Capt. Erik Luttkus, 1st Helicopter Squadron UH-1N Iroquois pilot, inspects the blades of the helicopter at Joint Base Andrews, Md., June 9, 2017. The 1st HS conducted a flyover demonstration above the Air Force Memorial in Washington, D.C., in support of the U.S. Air Force Band’s Heritage to Horizons concert series. (U.S. Air Force photo by Senior Airman Delano Scott)