ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,571, issued on June 9, was assigned to AIRBUS HELICOPTERS DEUTSCHLAND GmbH (Donauworth, Germany).
"Rotorcraft with a tail boom and an integral stabilizer arrangement" was invented by Rupert Pfaller (Riemerling, Germany) and Tobias Ries (Nordendorf, 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 an air inlet region and an air outlet region; the transverse du...