Jurgis Kairys flying by side at low altitude. Jurgis Kairys (born May 6, 1952 in Krasnojarsk, Siberia) is a Lithuanian aerobatic pilot and aeronautical engineer. He has won many awards for his flying and has invented several maneuvers, including the Kairys Wheel. He has manufactured his own aerobatic aircraft, called the Juka. Kairys' most famous stunts until today is flying inverted under a pedestrian bridge (height 7 meters) over Nemunas River wash in Kaunas September 2 2000 (nicknamed Ultraflight), and flight under all bridges over Neris River in Vilnius on September 18th 1999 (nicknamed Flight of the century).