Corporate and utility aircraft. In service since 1964. Turboprop development of BEECH Queen Air. Exists in some civil and military versions, E90 with more powerful engines and F90 with the T-tail of the Beech 200 Super King Air. Stretched development: Beech 100 King Air. This type has been taken over and is partly built by RAYTHEON, USA. US-mil. types: U-21, C-6.