There are several problems with d9:
1) Both initial and MW50 versions are late 1944 (September and November respectively), so their titles or captions should be adjusted.
1945 Doras were the D11 and D13
en.wikipedia.org/wiki/Fw190 :
Quote:
Early D-9s reached service without the MW 50 installation, but in the meantime Junkers produced a kit to increase manifold pressure (Ladedrucksteigerungs-Rüstsatz) that increased engine output by 150 PS to 1,900 PS, and was effective up to 5,000 m (16,400 ft) altitude. It was fitted immediately to D-9s delivered to the units from September, or retrofitted in the field by TAM. By the end of December, all operational Doras, 183 in total, were converted.[50] From November 1944, a simplified methanol water (MW 50) system (Oldenburg) was fitted, which boosted output to 2,100 PS. By the end of 1944, 60 were delivered with the simplified MW 50 system or were at the point of entering service.
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2) They do overheat very quickly and badly at 100% with boost at any altitude and speed even with the fully opened radiator,even in a 750-800km/h shallow dive between 5 and 2km which doesn't feel right.
They overheat much faster than Antons, Mustangs, p47s, LAs, and just about any other plane except for late Spits and 109s.
3) D9 45's engine after about 15-20 min of flying quickly overheats and dies in a matter of 10-15 sec. Even if you didn't use MW50 most of the time.
4) MW50 Dora's top speed is indeed lower than in any source I was able to find (about 710km/h) by about 20km/h
I'm all for realism, but if you alter(or should I say cripple?) one plane, please do the same to the competition.
According to many sources even La7s had some difficulties catching same age Antons(let alone Doras) in a shallow dive. But in the game it's a piece of cake. Even in d9 45 it is difficult to get away from La7s and even from i185m71 joke-plane, because they don't overheat as badly as Dora does, so while D9 45 is slightly faster, with all other things equal it will overheat much faster than la7 so you won't be able to maintain or increase separation, and since La7s also happens to be more maneuverable - there is nothing you can do (well maybe bail).