ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,223, issued on Dec. 23.
"Reaction drive helicopter with cyclorotor propulsion and control" was invented by Scott Alan Cubbage (Laguna Niguel, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a reaction-drive type rotorcraft. Thrust generators in the form of cycloidal rotor systems mounted on a main rotor system cause the rotors to spin and generate lift, and additionally, may be controlled to produce variable amounts and directions of thrust for control of position and velocity of the vehicle. The use of cycloidal rotor system thrust generators with vertical axes parallel to the spin axis of the main rotor system eliminates the occ...