This is a scheme by which a number of unrelated parties are able to purchase a portion of an aircraft. Each fractional owner shares a pre-ordained amount of aircraft access, although the aircraft is not necessarily the same every time. The main motivation of fractional ownership is the capacity to share the costs of the aircraft which no one party needs full-time use of. However, due to the fact that fractional owners generally pay a fixed monthly maintenance fee as well as an hourly fee, this results in it being more expensive than having Ai Charter organize individual on-demand flights.