Wouldn't bet on it, there's probably no lower limit to how rotten they can make an aviation war movie.
Watched 12 O'Clock High the other day, stunt-pilot Paul Mantz actually crashed a B-17 for an early scene. Even in black and white it's impressive and makes CGI look like crap.
I watched the Blueray DVD special features for Das Boot. No CGI, all models. I think it still looks better than the CGI. (A well made minature/model)