“This permission applies only to aircraft which are both jointly owned and in a club environment. Article 259(2) defines a club environment as meaning where an aircraft owned by, operated by or operated under arrangements entered into by a flying club of which both the instructor or examiner and student or examinee are members. So to comply with this permission, the joint owners will need to enter into arrangements with a flying club such that the aircraft is operated by or operated under arrangements with that flying club.”
Article 259(2) does not define a club or a club environment; it describes the meaning of aerial work!
Meaning of aerial work
259
The ANO contains no definition of a Flying Club! If it did it would be in Article 255 Interpretation.
If you look at the privileges of a Flight Instructor ANO Sched 7 you will see that all instruction has to be given in a club of which both parties are members. That poses an interesting question regarding all the approved FTOs which are not flying clubs and the CAA's own examiners who are not members of clubs, so in essence they all act illegally. Fortunately, with no legal definition, a club is anything you want it to be, i.e. two persons with common interest will do.