ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,194, issued on Jan. 27, was assigned to Wisk Aero LLC (Mountain View, Calif.).
"Propeller blade configuration" was invented by Neel Vora (San Mateo, Calif.), Pranay Sinha (Sunnyvale, Calif.) and Sebastian Thomas (Clayton, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor system design can reduce blade-wake interaction by staggering the vertical mounting position of the rotor blades on a hub. By staggering the vertical position, as the hub turns, the turbulent air impingement on subsequent rotor blades can be reduced. By reducing the turbulence on subsequent rotor blades the drag and noise is reduced. In rotor systems with an even number of...