Ermmm, you are all wrong. The 3.7 inch as far as I can tell is much like the German 88, its both AA and AT, the 3 inch is AA.
The AA does take some time to "wake up".
Fly atag and fly blue and head over to hawkinge where they have 9 bofors to each airfield.
You will be shot down to red AA/A. I garentee.
