US Patent Issued to FLYNOW AVIATION on May 5 for "Drive unit for a rotary-wing aircraft, and rotary-wing aircraft" (Austrian Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,525, issued on May 5, was assigned to FLYNOW AVIATION GMBH (Salzburg, Austria).

"Drive unit for a rotary-wing aircraft, and rotary-wing aircraft" was invented by Peter Ausserlechner (Salzburg, Austria), Jurgen Greil (Salzburg, Austria), Markus Kampitsch (Salzburg, Austria) and Jens Steingraber (Salzburg, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drive unit for a rotary-wing aircraft has a first and second propeller, which rotates in the opposite direction to, and are axially spaced apart from, the first propeller. A first and second drive shaft are arranged coaxially with the first drive shaft, for the propellers, wherein the propellers...