Textron Aviation is celebrating 60 years of Beechcraft King Airs. The first King Air 90 prototype took to the skies on Jan. 24, 1964, followed by a short 10-month flight test schedule which concluded with service entry that October. That was followed by the derivative King Air 100, 200, and 300 series. King Air 90-series turboprop twins were in continuous production from 1964 until 2021. Textron Aviation still produces the larger King Air 260 and 360. | Aviation International News