That's not the letter of the law, you are right. But I wonder how many turbines pilot have not had a ducted fan before ? And I would cross the answer to that with the number of turbines pilots actually flying regularly their jets without tedious hours of cellule maintenance....

Ducted Fan IS the best introduction to turbines, waiver or not. At least I would do exactly what I am doing now, even if I was still living in France.....

Bernard