Fractional ownership of an aircraft: when it works, when it gets in the way

The arrangement looks like this: several owners buy an aircraft together, split the fixed costs and fly in turn. The entry threshold falls by a multiple and the aircraft sits idle less. Here is when it adds up, and where it breaks.

Where the benefit comes from

An aircraft spends money standing in a hangar. Crew, parking, insurance, calendar maintenance checks, continuing airworthiness management — all of it runs the year round regardless of how much the aircraft flies.

At a hundred hours a year the fixed costs land on each flying hour as a hundredth. At four hundred, as a four-hundredth. The same aircraft, and the hourly cost differs by a factor of four.

Hence a simple consequence: the aircraft that stands unused is the most expensive of all. Fractional ownership raises utilisation and spreads the fixed part across a larger number of hours.

Who the arrangement suits

50–120 hours a year. Below fifty it is cheaper to charter. Above a hundred and twenty it is worth costing sole ownership: you will run into competition for dates with the co-owners.

A predictable schedule. Regular routes, known in advance. A co-owner who needs the aircraft suddenly and often collects refusals and leaves the arrangement within a year.

A match in the kind of task. All the owners fly roughly similar legs with comparable passenger numbers. Where one needs eight seats over five thousand kilometres and another needs two seats over eight hundred, no single aircraft suits both.

Where the arrangement breaks

Peak dates. New Year, the May holidays, the days of the major industry events. Every co-owner wants the aircraft on the same three days of the year. A set of rules in which priority follows the order of requests stops working at precisely that moment.

Different attitudes to spending. One is willing to pay for an engine programme for the sake of predictability, the second regards it as overpaying. The decision is taken jointly, and the conflict arrives with the first large invoice.

Leaving the arrangement. An owner wants to sell a share. A buyer for a share is harder to find than a buyer for a whole aircraft, and the remaining co-owners acquire a new partner they did not choose. The exit procedure is written down before the deal.

Liability for damage. The aircraft comes back with a defect after somebody else's flight. Who pays, how condition is recorded at handover, who carries out the inspection — questions that surface in the very first year.

What goes into the agreement

The arrangement rests on a document. Verbal understandings come apart at the first dispute. The minimum set of clauses:

1. The procedure for booking dates and for resolving conflicts over peak periods.
2. The allocation of fixed costs: by share, equally, or by who flew how much.
3. The decision-making procedure for large outlays: repairs, retrofits, a change of base.
4. The procedure for handing the aircraft between owners and for recording its condition.
5. Exit terms: pre-emption rights, the method of valuing a share, the timescales.
6. Who operates the aircraft and on what legal basis.

The middle option people forget

An aircraft under operator management. The aircraft belongs to you outright, a professional operator runs it, and in your absence it works on commercial bookings and covers part of the fixed costs.

You keep full control of the schedule and agree dates with nobody. Utilisation rises and conflicts between owners are absent by definition. In exchange the aircraft flies more and wears faster, and the income from commercial flights depends on the market.

I am a working operator myself. An aircraft above a certain take-off weight requires an airline operator under a management agreement: the threshold is set by the weight of the machine, so the question of the operator stands under sole ownership as much as under fractional. As a matter of principle I talk clients out of purchases that are not justified.

What to calculate before deciding

How much you actually flew over the past two years, strictly from the documents. The proportion of your dates that overlap with the usual peaks. The cost of a day when the aircraft is needed and unavailable. Total cost of ownership over three years, including the entry-into-service period.

And an honest answer to one question: are you prepared to coordinate your schedule with two or three people selected on financial grounds.

Alexander Filimonov — business aviation: sourcing, acquisition and entry into service of aircraft.