Unless you KNOW the files exist on the site you are searching on, looking for specific filenames is POINTLESS.  Many sites will simply use their own names for files, so the names provided by outside parties are not going to produce many results.

If I were you, I would figure out what the aircraft are (type, etc) and do a search for those things on some site.  Then start going through the files and look for the stuff that you need on them.

I may have not made myself very clear.  I've been having some holiday cheer .