The glaring flaw with K/D is it is assumed that it is an indicator of relative performance, and ignores augering, vulching, being vulched, suicide missions, and various other scenarios that can greatly skew numbers.
True - but the good thing about statistical processing is that in some ways despite their significance for any individual flight, many of the extraneous factors would be more likely to end up as "a wash" and drop out overall because it's the pilot who's responsible for then - "augering, vulching, being vulched, suicide missions", etc. And over the entire population of AH, I'd expect that it would affect most of the aircraft "more nearly equally than not". (Although I could be wrong of course!
)
However, I agree with you that there are certainly glaring factors not taken into account with just K/D.
1) The big jump in K/d between the -4 (2.48) and the Typhoon (1.59) - a result of the fact that aircraft that cost perk points are flown more carefully, or just that only more experienced pilots have the perks to fly them? Regardless, something "skews" the data - just ranging them leaves us with no "10" aircraft and the upper end is already well into the tail.
2) F4U-1A (1.35) and F4U-1D (0.72) K/d. I doubt you can find two planes that differ less from each other through the ENTIRE flight envelope in AH, and they are at the opposite end of the spectrum for K/d. Maybe because the F4U-1D carries lots of ord, and is more often used for ground attack? Or is it solely that the -1D is the later war variant, and only the F4U "experts" bother with the -1A?
3) Ki-61 (1.24) and La-7 (1.24). You'd have to look pretty hard to find two different aircraft in the plane set in terms of performance, and yet they have virtually identical K/d. Because everyone flies and dies in LA7's and only a few experten fly the KI61 regularly?
Dunno, except that ... it might be harder to determine fighter effectiveness purely mathamatically than I'd first estimated.
Simaril - I fly the Corsair almost exclusively - she's my favorite plane. (And I'm really jonesing for her! I've been without my game system for the last 2 weeks while we move, and we were on vacation before that !) I was simply remarking that I have a real hard time in the -1, much harder than seems reasonable - to me - given that I do quite well in the -1A. But if I ever get back in the air, I'd love to wing with you all sometime.