FM2-Yeah, it was only a Wildcat upgrade, but it was a damned good one. If it had been brought into the war 6 months earlier, there would have been a much larger number of aces made.
The more powerful engine and lighter weight created a much better fighter that caught more than a few enemy pilots by surprise. Turn, climb and speed performance were improved quite a bit.
The F4F/FM series produced 25 Navy and 34 Marine aces, several of whom who were awarded the Medal of Honor (eight). Navy pilot Butch O'Hare was the only Navy Wildcat pilot to be so decorated. The medal of Honor was presented to more Wildcat pilots than any other single-engine aircraft flown by the US armed forces in WWII.
Not too shabby!