Zig,
Yeah, the P-47 they tested is a fast bird. It's weight was only 14,000lbs so I wonder what varient it was? I think it was a D20 with a uprated engine to 64" of manifold. The only thing about the F4U-1 that could be changed in AH is the climb. Notice the initial climb at military power is 3K per minute. It's about 2700fpm in AH.
But the thing that stands out for me though is the stall speeds and drag numbers. The stalls in AH are all to high
P-51B=.017
F8F-1=.019
F4U-1=.020
F7F=.020
P-47D=.022
F6F-5=.023
P-38J=.028
The F4U numbers are broken down in detail including cooling drag. Niklas had mentioned a while ago that he didn't thing a F4U could really do 360mph on the deck because the drag was to high. I guess there is the answer.
Also the numbers on the F4U-3 are amazing.
487MPH at 27,500FT and 378 ot sea level. And that was a production bird BTW with 30 being built and delivered. It is amazing that the F2G has gotten so much attention over the years when the F4U-3 actually had better performance above sea level, while the F2G had a top speed of 397MPH on the deck and only 426MPH at alt. when the power curve fell off.