Originally Posted by
homonculus
I would hope a court would consider whether there is a clear agreement to SHARE the cost as opposed to make a contribution or do a deal. Nobody knows until the CAA decides to test it or is forced to test it. Caveat emptor
I don't know what exactly some posters expect the CAA to test.
The pilot "making a contribution", however small (the amount is not specified in the rules), would make such flight legal within current rules.