Paul E Williams Helicopter Wikipedia -

: On November 26, 1962, Williams was granted U.S. Patent #3,065,933 for a compound experimental helicopter. This design is often referred to as one of the "first useful helicopters" due to its novel features that improved maneuverability and structural safety.

: For his wide-ranging contributions, he received the NAACP's Spingarn Medal in 1953 and honorary doctorates from Lincoln University, Howard University, and the Tuskegee Institute. paul e williams helicopter wikipedia

: In the mid-20th century, Williams developed a prototype known as the "autocopter". This early vertical takeoff and landing (VTOL) concept was intended to explore the possibilities of personal flight. : On November 26, 1962, Williams was granted U