I have a USN manuals for both and vought's detail specification and performance summary for F4U-5, but there are many things remain a mystery.
Vought's document does not reflect the performance of possible changes or improvement that has been after deployed on military services.
especially, case of the performance for F4U-4B which equipped R-2800-42W engine has no clue.
therefore, I request USN's official performance documents for them, such as SAC or ACP.
or any USN document containing information about their performance at military services condition.
Thank you.