Quote:
Originally Posted by ACE-OF-ACES
Bingo!
Sure I can.. Or should I say.. Thus far NO ONE has provided anything that would be considered proof there is an error in the FM! Which is not to be confused with me saying there is no problems, only that no one (on the user side, i.e. not someone from 1C) has provided anything that would be considered proof! Look at most if not all of the threads in this forum, for every person that says the PLANE A is too slow, there is another that says PLANE A it is too fast! So what does that say about the users?
Which is why my first question to anyone making a claim of any sort is Got Track?©®. Because most of these so called claims can be put to rest by simply watching the track file, in that most of the time it is clear that it is pilot error! At least that is what I have found after years of viewing IL2 track files people provided as 'proof' of this or that
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Oh, there is abundance of proof that the 109 for instance is too slow. Please look up again the corresponding threads.
I guess that there has been similar data posted for other planes as well.
EDIT: On the how to do a sim: I have a couple of years experience in the aerospace business as an engineer and I work for a research institute in this field. One field of our research are hypersonic planes. As any hypersonic plane has to accelerate through the subsonic velocity range (and deccelerate later for landing) we put some effort in studying subsonic aerodynamics. From all experience we have collected I can say one thing: there is not ONE single simplified method that can predict accurately the aerodynamic forces in the subsonic region (but some adequate approximations) for low and medium subsonic speeds. When the speed approaches transsonic speeds it basically gets guesswork.
Only halfway trustworthy aerodynamic results by calculation would be to do the fully viscous NS-equations (provided they can be solved correctly) but this is not at all practicable for a flight sim as the calculation for one flight point only (Ma, altitude, angle of attack, sideslip angle) would take a lot of time and we would need an enormous number of flight points in order to create a sufficiently large data base. And again, as a researcher who respects himself, I would request to verify some calculated points by wind tunnel tests ...
And we yet have not even talked about the damping coefficients which are even more difficult to assess by wind tunnel tests let alone determine by calculations ...