The promise and the problem
For many pilots, co-ownership looks like the perfect compromise. Fixed costs are shared, access is better than in a club and the aircraft can reflect the group’s preferences.
Groups often fail because the legal, financial and operational structure does not match how people behave once money, maintenance and different priorities are involved.
A strong structure should not assume that everyone will always agree. It should be built around what happens when they do not.
The real reasons co-ownership fails
1. Legal and financial structure does not match reality
Equal ownership may coexist with uneven use, while unanimous voting can make urgent decisions impossible. Ownership, use, decision authority and financial responsibility should be treated as separate elements.
2. Loose agreement terms create conflict
‘Costs are shared equally’ and ‘major decisions require agreement’ are too vague without definitions. The agreement should address fixed and variable costs, reserves, repair authority, voting, deductibles, damage, exit, valuation and default.
3. Predictable problems are left unregulated
- Damage responsibility is disputed
- A member wants to leave
- The reserve is empty when a large invoice arrives
- One member wants an upgrade
- One member behaves like the sole owner
4. There is no flexible exit strategy
A share is not easy to sell. The structure should define first refusal, valuation, timing, approval of a replacement, what happens if no buyer appears and when the whole aircraft may need to be sold.
The goal is not to keep everyone happy forever. It is to let everyone leave fairly.
5. Rules exist but cannot be enforced
Late payments, unreported defects, unauthorised use or refusal to fund repairs need practical consequences. These may include suspended flying rights, voting restrictions, financial consequences or a forced sale process.
6. Recurring risks have no practical response
- Booking and availability conflicts — use priority, rotation and conflict-resolution rules
- Unpaid contributions — define due dates, suspension rights and default remedies
- Insufficient maintenance reserves — set a reserve policy, forecast and review cycle
- Unexpected capital calls — define approval thresholds and consequences of non-payment
- Damage responsibility — allocate reporting duties, deductibles and uninsured loss
- Upgrade disagreements — distinguish required maintenance from optional improvements
- Voting deadlock — use reserved matters, thresholds and a deadlock process
- Unequal use — separate ownership shares from hourly operating charges where appropriate
- An original owner retaining excessive control — align decision rights with the ownership bargain
- Inability to sell or value a share — define valuation, first refusal, buyer approval and group or aircraft sale mechanisms
A better way to build co-ownership
What if I bought the aircraft alone?
This reveals financing, reserves, depreciation, repairs, fixed costs, capital calls and exit.
What if somebody else were using my aircraft?
This reveals insurance, experience, checkout, defect reporting, cleaning, overnight trips, damage and reserve contributions.
Do not rely on friendship alone
The strongest groups define costs realistically, separate ownership from use, create reserves before they are needed, establish a dispute process and make it possible for somebody to leave without destroying the group.
Ask how the arrangement will work in five years if one member wants out, one wants an upgrade and one no longer wants to pay. A clear answer is a strong sign that the structure can last.
This briefing provides general information and is not legal, tax or transaction-specific advice. The appropriate structure depends on the aircraft, participants and relevant jurisdiction.
