Photograph of an air force pilot standing behind a microphone on a large aircraft landing area. He faces the left and stands with his hands behind his back. A row of troops is lined up in the background holding an American flag and another flag. An aircraft is visible standing behind them.

Photograph of a UH-1F Iroquois helicopter parked outdoors on a large concrete surface. "U.S. AIR FORCE" is painted across its tail boom. Behind it, a flat field of grass stretches out into the distance and several buildings are visible on the right.

Photograph of individuals rolling a YUH-1D Iroquois helicopter out of a large aircraft hangar. The U.S. Army logo is painted on its tail boom. The helicopter is on ground handling wheels and is being towed by a vehicle that is cut from the frame. One man stands on one of the landing skids and others are visible standing behind the helicopter.

Photograph of the mechanism beneath the propeller on a UH-1B Iroquois helicopter.

Photograph of a closeup of a UH-1E Iroquois helicopter's engine resting in a large shop.

Photograph of a side view of a UH-1B Iroquois helicopter parked in a large, grassy field. The U.S. Army logo is painted on the tail boom. Buildings are visible in the distance.

Photograph of six UH-1B Iroquois helicopters in flight. They hover over a large landing area by the Bell Helicopter Co facilities. Distant buildings are visible on the horizon.

Photograph of five UH-1B Iroquois helicopters flying over a war-zone simulation training area composed of hollow, wooden structures. A group of soldiers reclines on the roof of one of the structures far below.

Photograph of a UH-1L Iroquois helicopter flying high over a city. "NAVY" is painted on its tail boom and "7806" is painted on the tail fin.

Photograph of two soldiers in uniform standing on either side of an armed UH-1B Iroquois helicopter in a large, grassy field. The number "402" is painted on the side of the helicopter and the U.S. Army logo is painted on the tail boom.

Photograph of the floorboard of the cockpit of a UH-1B Iroquois helicopter. Many controls are arranged between two cushioned seats.

Photograph of a view of the controls mounted to the ceiling of a UH-1E Iroquois helicopter's cockpit.

Photograph of a view inside the frame of a UH-1B Iroquois helicopter during its construction. A paper tag hangs off some flexible metal tubing on the ceiling of the aircraft. A panel with many controls is mounted above the windshield area. Wires hang down below it.

Photograph of a man climbing into a YUH-1D Iroquois helicopter that is parked outdoors on a large concrete surface. He wears a short-sleeved, white shirt and dark slacks. Another man lies on the ground beneath the helicopter. Both of the aircraft's propellers are rotating. In the background, a building is visible on the left and fencing is visible on the right.

Photograph of two men sitting in the cockpit of a YUH-1D Iroquois helicopter. They both wear coveralls and turn their heads to face the camera.

Photograph of a UH-1C Iroquois helicopter resting on a concrete surface, taken from above. "United States Army" is painted on the tail boom.

Photograph of an individual parachuting from a YUH-1D Iroquois helicopter flying over a wetland landscape. "ARMY" is painted on the side of the helicopter and the U.S. Army logo is painted on its tail boom.

Photograph of a view inside an open compartment of a UH-1B Iroquois helicopter. The door of the exterior compartment is open, revealing electrical and mechanical components beneath. Bundles of wires run to and from the parts, which are arranged on shelves. Some of the parts are labeled, such as "Servo Amplifier," and "Reciever, Radio." A handwritten note posted on one of the shelves reads, "1584."

Photograph of an individual holding up a UH-1E Iroquois helicopter cockpit door. The individual wears a long-sleeved shirt with slacks and is partially cut from the frame. The door they hold up is labeled "TEST." A helicopter assembly is partially visible in the background.

Photograph of a closeup view of where the guns are attached to a UH-1B Iroquois helicopter.

Photograph of a wall of shelving at a Bell Helicopter Company workspace during the development of the YUH-1D Iroquois helicopter. One of the shelves is labeled "SS Box Beam Doublers." A piece of paper, two rolls of tape, and a file rest on a table in front of the shelves.

Photograph of a round helicopter part, likely for UH-1B Iroquois helicopter. A pencil rests on top of it. A piece of paper with a hand-drawn diagram hangs up behind the part.

Photograph of a view of some of the mechanical components of a UH-1B Iroquois helicopter that is being constructed. Two notecards lean against the helicopter assembly. One has "FWD" written inside a left-facing arrow, the other reads, "1584."

Photograph of a large piece of equipment and two YUH-1D Iroquois helicopters sitting outside on a large concrete surface.