Luno is right on the money. FM's can be revised and changed I'm sure... but it's very important to have actual data to support such changes. Even for what may be trivial things... myself and a few others did some pretty difficult research to fix the armament on the Yak-9UT from something totally bonkers to the correct loadouts. We knew generally that they were wrong but in order to do it right, we did the research and found reasonable documentation to support the corrected loadouts and the ammo counts.
With flight modeling it's even harder but if there is solid documentation then gather it up and submit it as a package. Some people have previously said "Well isn't it obvious, the information is out there" and the answer is.. if you want to affect change. Then do some legwork yourself
