A very interesting discussion. I am not an expert and hesitate to add to the many posts, but I would add just one comment. The only fighter planes...
If I may suggest two great books to come out of World War II: "Le Soldat Oublie", by Guy Sajer, and "Quand j'etais Rochambelle", by Suzanne Massu....
I hesitate to reply since you have so many replies already and I really don't have much to add. I have vague recollections of the XP 55. My...