Fractional Jets is a common term for fractional ownership of aircraft. The first such program was launched in 1986 by NetJets, which continues to dominate the industry with unmatched safety and service. Other providers include business jet operators CitationShares, Flexjet, Flight Options. 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 prop Pilatus PC12s or Autumn Air's use of Cessna Citation Is, IIs & Vs and Beechcraft King Air 90s & 200s.With fractional jets, customers buy a share of a plane, rather than an entire plane. The price is pro-rated from the market price of a full aircraft.