Hello
Oleg
here is the WEB SITE where you can find all the information that you need.
it has all of the awards and the critera needed ( incomplete)
in some case of course like the George Cross/medal which you would not use because it was instituted June 24th, 1941.
there is no reason why you couldn't use the Military Cross normally given for ground action but there are pilots who were awared this honor
http://www.ww2awards.com/ EDIT : after further research there are some errors on this web site
I have done a lot more research and have found a very credible web source,I am in the process of gathering this information and will post shortly
BUZZSAW is only partially correct in his post but he got me started in doing a much more through research