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Hiller XH-44 Hiller-Copter
From the collection of National Air and Space Museum. Free to download, adapt and use — no permission needed.
About this work
In 1944, at the age of 19, Stanley Hiller, Jr. designed, built, and test flew the first helicopter with coaxial rotors to fly successfully in the United States. The XH-44 was also the first helicopter to fly successfully with all-metal blades and a rigid rotor. Hiller used the counter-rotating coaxial configuration to distinguish his designs from Sikorsky's single main rotor designs that dominated the helicopter industry in the mid-1940s.
National Air and Space Museum’s own descriptionSubjects
Credit lineHiller XH-44 Hiller-Copter. 1943-1945. United Helicopters Incorporated. National Air and Space Museum, Gift of the Hiller Aircraft Company. CC0.
