U-21F Beech 100
The Beechcraft King Air is a series of American twin-turboprop aircraft that has been in production since 1964. It is divided into two families: the Model 90 and 100 series, known as King Airs, and the Model 200 and 300 series, originally called Super King Airs (although this name was dropped by Beechcraft in 1996). The King Air was the first aircraft in its class and has consistently outsold all of its competitors. In recent years, it has faced competition from jet aircraft such as the Embraer Phenom 100 and the Honda HA-420 HondaJet, as well as newer turboprop aircraft like the Piaggio P180 Avanti and single-engine planes like the Piper Malibu Meridian, Pilatus PC-12, and Socata TBM. The King Air was produced until 2021.