This site is being deprecated.
Please see the official X‑Plane Support page for help.
In general, Austin codes the flight model based on his experience in very carefully controlled conditions. If his experience doesn't cover an area (like tail dragger aircraft) the flight model may not be tuned exactly right.
We hear complaints about tail dragger aircraft occasionally but have not yet gotten the type of data he needs to make changes. He will be looking for very specific mathematical proof to tweak the flight model for these aircraft. If anyone has specific data they should submit it via the bug reporter.
This site is no longer being actively maintained.