Dear Noyade, no secrets. It just happened that I "specialised" on aircraft since 1945 and apparently people copy the modern PCs and develop some sort of database in their heads and remember that could be a....... It is always fun if the guess turns out to be correct. My database started (back in the early-1960s) with a handwritten file card with photo/details for each type and has now been moved to my PC (although for each new type I still make a filecard!). I am sure that the above must be familiar to many of the PPRUNEers.
One11 is so correct on the French postwar aviation, although the USA also produced numerous new aircraft (most of which never entered production). I understand that especially light aviation in France afterWW2 was strongly supported by the government and that could be an explanation why France produced (it still does) so many homebuilt aircraft types, several of which evolved into factory-built types.
At this moment no posting from my side. Am busy re-arranging the ""attick" and check what I all got in the filing shoe boxes.