See this book at Aircraft Spruce & Specialty. I have it and it is very informative.
http://www.aircraftspruce.com/nsearch.php?s=partnership CONTENTS PAGE Suggestions for use of the Co-Owned aircraft agreement The Sample Agreement: an Explanation Appendix Summary Sample Aircraft Co-Ownership Agreement Contents Shareholders' Agreement SECTIONS Name & Purpose Term of the Group Shareholders' Contributions Officers and their Duties Meetings Management, Decision Making and Representation Capital Accounts Books and Record Custody of Documents Restriction on Corporate Assets Additional Shareholders Withdrawal Right of First Refusal Death of a Shareholder Insurance Continuation Liquidation Use of the Aircraft Flight Limitations Responsibility Dispute Resolution Notices Binding Effect Appendix Aircraft Flight Record Aircraft Maintenance Record Tips on Team Building for the Co-Owner Exiting the Partnership Conclusion Good Luck Art Bruce