Naturally,it depends on the immediate situation.
Against 1 or more planes you might be able to shoot them down,if you have the twin flak guns.Against more than say 2,I would increase speed to flank and crash dive to about 50m,then as you descend turn towards the plane's last known position.What this will do is give you a good chance to undercut the bomber's run as he comes in.
If the planes are already on you and crash diving is out of the option (due to a fall in speed as you dive) shoot it out with them,and allow them to make their bombing run,trying to also zig zag as they are shooting you.Then as they pass over in front of you immediately bellow "ALAARRRRRM!!" and then make your dive.
I would also recommend staying down until darkness,and if all is clear blow the tanks.
Using this info is probably only useful up to a certain point,as allied aircraft strength increases massively as the war grinds on.
Also,its a good idea to turn on any radar device you have,even Fumo 29,as its intended to detect aircraft.However,having said that,if your course is not facing towards the nearest allied air base then Fumo29 would be a bad idea as it only detects objects to the front and a little to the sides,you are blind everywhere else.I generally use Fumo29 radar during the night and during low visibility,like heavy storms,where it would allow me to still detect things and may also give me SOME cover just in case I was also being tracked by radar.
And probably most important of all,is to have 2 skilled flak gunners and a flak officer to direct them.
You are a wise man indeed to fear planes,they will make your life hell before long!
