All too quick to point out flaws of P-51 and not mention any of its strengths besides speed.
The P-51D was not the only version, but he only used its data. Earlier P-51Bs acutally had higher performance. The P-51D's bubble canopy cost performance, but for many pilots it was worth 5 mph of top end. The P-51H may not have entered production, but was certainly a contemporary of the F4U-4 and would have smoked it. The real advantage that the P-51 had besides high-altitude performance, was long range. I didn't see range even mentioned.
Aside from mentioning turning ability, he completely ignored the Spitfire.
I didn't see any Axis fighters mentioned as being comparable or superior to the F4U-4. N1K2 gave all F4Us problems, only the shortages of aircraft and veteran pilots doomed the N1K2. Of course, the F4U-4 never really had to face late war 109s an 190s. It is hard to compare combat performance of aircraft that served mainly in Europe or Pacific: two entirely different sets of conditions for fighting with completely different opponents.
Aside from top speed and compressibility, how was the F4U-4 better than the late P-38s? By his own admission, the P-38 was much better in acclereration and maneuverability. With two engines, it could haul a heavy load a long way.
I love the Corsair and it was one of the greatest planes of all time, but I wouldn't even call the very late war F4U-4 the best fighter of WWII. Hell, it hardly even participated.
Production numbers say a lot about an aircraft. The best design is the one that is cost effective all the way around, considering time, money, and performance. More B-24s were built than B-17s simply because they were easier to build. Of course they also needed to be replaced faster since they were easier to shoot down
I have never seen a production cost/time analysis of WWII aircraft. But surely aircraft with two engines will lose on this one since that is the major cost both in time and money. I'm willing to bet a Merlin powered P-51D was the most cost-effective solution for long-range bomber escort duty, or we wouldn't have filled the skies of Europe with them. Certainly the performance of the P-47 and P-38 were comparable if not superior, but I am guessing that they cost more.
Anybody have any facts on this issue? A useful figure would be the number of man-hours per aircraft produced. Financial costs would only work with same-country analysis. How do you compare the Axis with a collapsing economy to the Allies who were rolling in the dough by the end of the war?