https://www.caa.co.uk/General-aviation/
https://publicapps.caa.co.uk/modalapplication.aspx?appid=11&mode=detail&id=8052
https://publicapps.caa.co.uk/docs/33/CAP1589%20-%20cost%20sharing%20GA%20guide_v3%20(Aug%202018).pdf
Rappel : PPL https://fr.wikipedia.org/wiki/Licence_de_pilote_priv%C3%A9
