Scholz, that is an incredible story, thanks for posting it!
But what shows is a P-51 pilot following the 109 flown by the Luftwaffe ace of aces maneuver for maneuver, right down to the slow speed end of the envelope. Maneuvering almost as well as a 109 is a thing I feel like I can do with the AHII P-47D-11, I don't feel like the P-51 will do it as well, and again this is odd, given where the two planes were historically ranked on agility.
But you know, given the P-51's popularity and other excellent attributes, if they turned as well or modestly better than the D-11, I think the D model would have to be a perk ride. And what would the effect be if new players clicked on the most popular WWII plane in our culture and were greeted by the message "You don't have enough perks for that model"?
You're welcome.
What you don't seem to realize is that without flaps or with only combat flaps the P-51D is very close to a 109G in flat turning performance in this game. Just like it was in that encounter.
These numbers are from Mosq's sustained turn list:
P51D, no flaps, 25% fuel, radius: 780.3 feet, rate: 18.3 dps
P51D, 1 notch of flaps, 25% fuel, radius: 759.6 feet, rate: 18.9 dps
Bf 109-G14 (the 109 model Thompson fought), no flaps, 25% fuel, radius: 672.2 feet, rate: 20.0 dps
A real turner:
A6M2 Zero, no flaps, 25% fuel, radius: 376.8 feet, rate: 27.2 dps
As you can see the two aircraft are not that different with the 109 having marginally better turning performance. A more realistic MA setup would be to give the 109 more fuel, at least 50%, and then they would be even more closely matched.
The problem you face in a Pony fighting a 109 in this game is that we drop flaps a lot more than what they did in real life, and a 109G with full flaps out turns a Pony easily.