drgondog
Major
The only point I was making Kurfurst is that of all the fighters we have been talking about, only the P-47 Improved performance when going from 25K to 30K (or 35).
There is no question that P-51s and Me 109s can engage and fight at 30K. The question posed is whether the Mustang loses comparitive performance versus the later model 109s in 1944 at that altitude. If so the 1650-9 becomes the standard P-51B and then D engine instead of the 1650-7 in mid to late 1944 instead of being allocated to P-51H production.
There is no question that the Fw 190A7 (and A8) is at a serious comparitive disadvantage to the P-51B (as is with 1650-3) and even the D with 1650-7