Paolo, the founder of warbirdsforum gave me a few weeks heads up
Recently, I found warbirdsforum.com was closed. It is sad news, because I've had a lot of help with the performance data you've collect. If you don't mind, I would like to see the information you have uploaded to forum once again. Could you please swap the data you collect with me? I don't have much data to return your favor, but I collected some. I think some of these will be good for you.
I have been studying WW2 fighter aircraft since 1968. Since 2003 I have been concentrating more on the VVS. I have a fair library and files on the subject. I am an old fart at 59 but very much like reading the posts on this sight.