I have just found this thread.
In tests in '42 and '43, it was found that the Fw-190 was superior to the P-47 below 15,000ft, and that the P-47 was superior above 20,000ft. Let's put American troops ashore in France in early 1943. The Fw-190s bomb and strafe the hell out of them, and the P-47s are sent to intercept. Combat take place in conditions that suit the Fw-190.