Portal:Aviation/Historical anniversaries/December in aviation/December 15
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- 1996 - the merger of McDonnell Douglas and Boeing is announced
- 1959 - Maj J W Roberts sets a new airspeed record of 1,526 mph (2,456 km/h) in a F-106 Delta Dart
- 1955 - the de Havilland Mosquito flies its final operational sortie with the Royal Air Force
