ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,050, issued on April 7, was assigned to AIRBUS HELICOPTERS DEUTSCHLAND GMBH (Donauworth, Germany).
"Rotorcraft with a tail boom having a duct-type portion" was invented by Rupert Pfaller (Riemerling, Germany), Tobias Ries (Nordendorf, Germany) and Uwe Kiesewetter (Rain Am Lech, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotorcraft with at least one main rotor and a fuselage, comprising: a tail boom connected to the fuselage, the tail boom extending in a longitudinal direction from the fuselage toward a duct-type portion; a shroud provided at the duct-type portion and forming a transverse duct comprising a circumferential direction and ...