I was reading this website (
Fly in France) and it mentioned that end of March France goes S-Mode. Is there a way of finding out which CAS you need mode-s in? I'm still waiting for my French aeronautical charts so am not sure.
Quote:
S mode Transponder
France has postponed till March the 31st 2009 the obligation to have a S mode transponder to enter its controlled airspace for VFR flights. Therefore, during the whole 2008 year, all B,C,D French airspaces can be entered with a Mode C transponder.
After March the 31st 2009, the Paris and Reims FIR should be the first to enforce the new regulation. Others (Marseille FIR ) should follow the next year, and the whole French airspace should enforce the S mode from 2012 on. More details to come later.....
Several controlled areas can't be entered if your aircraft is not equipped with an XPDR giving your FL (C mode), though. This is especially true in the newly rated C airspaces.