I notice that the default C-182S and the C-172 significantly under perform the published performance figures in regard to cruise speed, service c3eiling, fuel consumption, take-off distance, and just about every other category.
I plan to try to correct these problems to the extent possible if necessaary.
But, I'm not trying to reinvent the wheel and if someone has already done the work on new .air and .cfg files then I'd like to use them and save myself a whole bunch of work and time.
Has this already been