High Quality Content by WIKIPEDIA articles! Fractional Jets is a common term for fractional ownership of aircraft. The first such program was launched in 1986 by NetJets. Other providers include business jet operators CitationShares, Flexjet, Flight Options, and Executive AirShare. Fractional aviation is also available in non-jet aircraft, such as Avantair`s fleet of Piaggio P180 Avanti aircraft, PlaneSense`s Pilatus PC-12 fleet, or combined fleet of jets and turboprops such as AirSprint`s Cessna Citation Excels and turboprop Pilatus PC-12s or Autumn Air`s use of Cessna Citation Is, IIs & Vs and Beechcraft King Air 90s & 200s.