6 Squadron RAF Leuchars3 Squadron RAF Coningsby17 Squadron RAF Coningsby29 Squadron RAF Coningsby11 Squadron RAF Coningsby

No. 617 Squadron RAF .

RAF Sqd. 249 based in Malta was the TOP scoring Sqd. or the RAF

The 633 Squadron is a fictional RAF Mosquito Squadron of WW II. It exist only in the movie.

This is not true. The name 633 Squadron became known through a novel and subsequent movie, both of course fictional. There was and still is however a real 633 Squadron formed in 1948. It is a voluntary RAF Squadron for the flight training of young Air Training Corps cadets. I used to be an instructor with this squadron.

In May/June 1938, the RAF's 19 Squadron got the first Spitfires in service