Aircraft Partnership Calculator

Buy-in per partner is purely the aircraft's total value divided by the number of partners -- it represents the equity cost of owning a share of the physical asset, which has nothing to do with how much any individual partner plans to fly. Hours per partner only affects the operating-cost side of the calculation, specifically cost per hour flown, not the ownership-equity side.

Cost per hour flown is built entirely from insurance, hangar, and maintenance costs -- fixed expenses that depend on the specific aircraft's insurance risk profile and upkeep needs, not directly on its market value. Two aircraft of very different values can carry similar annual insurance and maintenance bills, in which case they'd produce similar cost-per-hour figures for partners even though their buy-in costs are very different.

Adding partners reduces both buy-in per partner and equity share proportionally, since the aircraft's total value and 100% ownership are being divided across more people -- going from 2 to 4 partners roughly halves each partner's buy-in and equity share. The same math applies to each partner's share of fixed costs, which is why partnerships with more members typically have a lower financial barrier to entry per person, at the cost of sharing scheduling access with more people.

No -- this calculator assumes every partner owns an equal share of the aircraft and pays an equal share of fixed costs, which is the most common structure for small aircraft partnerships. Some real partnerships instead weight ownership or cost shares by expected flying hours or negotiate unequal buy-ins between partners; modeling that would require entering each partner's individual share separately rather than dividing everything by a single partner count.