ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,030, issued on Dec. 2.
"Vertical take-off and landing aerodyne optimized for horizontal flight" was invented by Gerard Tavin (Angers, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a vertical take-off and landing aerodyne, including a fuselage, two wings, horizontal flight propulsion unit and at least one pair of rotors intended to provide propulsion and lift in the take-off and landing phases. The rotors are retractable and the horizontal flight propulsion unit includes a counter-rotating propeller, situated at the tail of the aerodyne, and a drive unit for rotating the counter-rotating propeller, the counter-rotating propeller b...