The smallest King Air, used for liaison and multi-engine training. Live King Air 90 positions.
The King Air 90 is the original of the family and the smallest of them, and its military life is mostly training. Canada uses a fleet of C90s at Portage la Prairie to teach multi-engine flying, and those aircraft — civil-registered, contractor-operated — are among the most consistent appearances on this page.
The US Navy flies the UC-12 variant for light transport, and a number of smaller air forces operate one or two for liaison and calibration work.
It is a modest aircraft doing modest jobs, but it flies constantly, which is why it shows up more than more glamorous types.
Size and tail. The 90 is the smallest of the family with a conventional tail; the C-12 is based on the larger King Air 200, which has a T-tail and a longer cabin.
Multi-engine training in Canada is delivered under contract by a civilian provider, so the aircraft carry civil registrations while flying a military syllabus.
The US Navy and Marine Corps designation for King Air-based light transports. Several variants exist across the King Air family, some under this designator and some under others.