20 April 1981 - Reno, Nevada, USA -   3-5' object hovered below Cessna 210

4 July 1981 - Lake Huron, Michigan, USA -   Disc with ports maneuvered ahead of L-1011 airliner

19 August 1981 01:00 - Grissom AFB, Indiana, USA -   Radar

20 August 1981 Night - Kokomo, Indiana, USA -   USAF incident. Explanation: Balloon.

17 October 1981 02:00 - Sydney, New South Wales, Australia -   Air Cargo L188 incident.

19 October 1981 02:10 - North Platte, Nebraska, USA -   Objects were tracked by radar and sighted visually. Three multi-colored discs were observed by five witnesses (Knobel).

31 October 1981 21:00 - Marcos, Argentina -   Two airliners report object

12 November 1981 18:00 - Hortiati Nato Air Base, Greece -   NATO jets scrambled, UFOs play hide-and-seek, disappear, reappear 45 minutes later. Also seen in villages of Kalokorio, Mihaniona, Laina, cities of Gianitsa, Edessa.

13 November 1981 Evening - Hortiati Nato Air Base, Greece -   UFOs return for a second night, witnessed by police in Thessaloniki. Picked up on radar at Horiati radar station, NATO jets scrambled again without success.