United States of America
Henry Berliner was the son of Émile Berliner, an early pioneer in the design and development of vertical lift aircraft. He carried on his father's work after his father fell into poor health. He subsequently developed various versions of coaxial type helicopters and hybrid airplane/vertical lift aircraft using side-by-side lifting rotors.
An account of his work in vertical flight aircraft can be found in the following reference,
"The Berliner Vertical WIng Aircraft, 1909-1924", J. Gordon Leishman, VERTIFLITE Spring 2002, Page 30
|Milestones associated with Henry Berliner|
|June 10, 1920||First semi-controlled flight of the 1919 Berliner machine|